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  • servlet authentication and further reference to the credentials

    - by user553592
    What I got so far: It all begins with an HTML form which prompts the user for a username and password. From there it post the acquired user/pass to a servlet, GateKeeper. GateKeeper determines if the user/pass combination match any records in the MySQL database. Here is the sql I use: SELECT id FROM Users WHERE username='?' AND password=MD5('?') where the ? indicate information provided the previous HTML form. What I need now: I need some way to store the username and id of the record in the database. GateKeeper redirects the user to a control panel upon success. Therefore, I need a method to reference the username to display simple greetings, etc and also the id so it eliminates unnecessary calls to the database. The control panel may make AJAX calls to Servlets that preform some sort of task to the MySQL database.

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  • Bible reference books (PHP / MySQL / Unix)

    - by Josh K
    I'm looking for some nice heavy books to liter around my desk and make it look like I'm a hard core programmer. On the occasion that I might want to look something up they will also need to be useful dependable books. I'm looking for the equivalent bible in PHP, MySQL, and Unix. Should be laid out with some chapters I can actually read, along with having an in-depth reference to that particular subject. I know that the majority of this can be found on Google, but I would prefer it in book form.

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  • SQL Check Constraint cannot reference other column

    - by user1777711
    I trying to add this sql check in ALTER TABLE School add Role check_role CHECK (check_role IN ('Teaching Assistant', 'Lecturer', 'Professor')); I get the error below ERROR at line 3: ORA-02438: Column check constraint cannot reference other columns SQL> desc School; Name Null? Type ----------------------------------------- -------- ---------------------------- STAFFNUM NOT NULL VARCHAR2(12) NAME NOT NULL VARCHAR2(50) ADDRESS NOT NULL VARCHAR2(300) DOB DATE I am trying add a column call Role, with the check constraint check_role I am using Oracle SQL. Thanks for all help!

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  • Assigning a 2D array (of pointers) to a variable in an object for access in C++?

    - by MrMormon
    I'm sorry if I didn't pick a descriptive or concise name. A lot of questions sound similar, but I haven't been able to find what I'm looking for. What I want to do is store a 2D array of pointers somewhere and assign a variable in some object to that array to be able to access it. Here's some example code that has the same compile error I'm getting with a bigger project. #include <iostream> using namespace std; struct X{ float * b[8][8]; X(){ *(b[1][5]) = 1; cout << *(b[1][5]) << endl; } void Set(float * c[8][8]){ b = c; cout << *(b[1][5]) << endl; } }; main(){ float * a[8][8]; *(a[1][5]) = 2; X obj; obj.Set(a); } What I want to happen in this code is that an X object starts with its own 2D array, whose value pointed to by b[1][5] should be printed as "1". Then the main method's 2D array, a, is passed to the object's Set() method and assigned to its array variable. The value pointed to by b[1][5] should then be printed as "2". However, I can't figure out what type the Set() parameter, c, should be. I get error: incompatible types in assignment of ‘float* (*)[8]’ to ‘float* [8][8]’ when I try to compile. As for why I want to do this, I'm trying to use an array of pointers to objects, not floats, but it's the same error.

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  • Including an embedded framework using a cross-project-reference: Header no such file or directory

    - by d11wtq
    I'm trying to create a Cocoa framework by using a cross-project reference in Xcode. I have 2 projects: one for the framework; one for the application that will use the framework. This framework is not intended to be stored within the system; it is an embedded framework that lives within the application bundle. I have successfully made the cross-project reference, marked the framework as being a dependency of my target, added a Copy Files build phase that puts the framework in Contents/Frameworks/ and added the framework to the linker phase (I checked the little "Target" checkbox; I've also done it manually by dragging the framework into the linker phase). My framework's install directory is correctly set to @executable_path/../Frameworks. However, when I try to build my app it: a) Correctly builds the framework first b) Correctly copies the framework c) Errors because it cannot find the master header file in my framework I have verified that the header is there. I can see it in the app product that is partially built. ls build/Debug/CioccolataTest.webapp/Contents/Frameworks/Cioccolata.framework/Headers/Cioccolata.h build/Debug/CioccolataTest.webapp/Contents/Frameworks/Cioccolata.framework/Headers/Cioccolata.h I have been able to successfully build the app by copying my framework into /Library/Frameworks (I can then delete it again after the successful build), but this is a workaround, I'm looking to find it out why Xcode doesn't find the framework's master header file without it being copied to a system directory. Is copying it to the app bundle during the build not sufficient? Here's the full build transcript if it's any help (it's just a Hello World app right now, so not much going on here): Build Cioccolata of project Cioccolata with configuration Debug SymLink /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/Current A cd /Users/chris/Projects/Mac/Cioccolata /bin/ln -sf A /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/Current SymLink /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Resources Versions/Current/Resources cd /Users/chris/Projects/Mac/Cioccolata /bin/ln -sf Versions/Current/Resources /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Resources SymLink /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Headers Versions/Current/Headers cd /Users/chris/Projects/Mac/Cioccolata /bin/ln -sf Versions/Current/Headers /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Headers SymLink /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Cioccolata Versions/Current/Cioccolata cd /Users/chris/Projects/Mac/Cioccolata /bin/ln -sf Versions/Current/Cioccolata /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Cioccolata ProcessInfoPlistFile /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Resources/Info.plist Info.plist cd /Users/chris/Projects/Mac/Cioccolata builtin-infoPlistUtility Info.plist -expandbuildsettings -platform macosx -o /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Resources/Info.plist CpHeader build/Debug/Cioccolata.framework/Versions/A/Headers/CWHelloWorld.h CWHelloWorld.h cd /Users/chris/Projects/Mac/Cioccolata /Developer/Library/PrivateFrameworks/DevToolsCore.framework/Resources/pbxcp -exclude .DS_Store -exclude CVS -exclude .svn -resolve-src-symlinks /Users/chris/Projects/Mac/Cioccolata/CWHelloWorld.h /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Headers CpHeader build/Debug/Cioccolata.framework/Versions/A/Headers/Cioccolata.h Cioccolata.h cd /Users/chris/Projects/Mac/Cioccolata /Developer/Library/PrivateFrameworks/DevToolsCore.framework/Resources/pbxcp -exclude .DS_Store -exclude CVS -exclude .svn -resolve-src-symlinks /Users/chris/Projects/Mac/Cioccolata/Cioccolata.h /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Headers CopyStringsFile /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Resources/English.lproj/InfoPlist.strings English.lproj/InfoPlist.strings cd /Users/chris/Projects/Mac/Cioccolata setenv ICONV /usr/bin/iconv /Developer/Library/Xcode/Plug-ins/CoreBuildTasks.xcplugin/Contents/Resources/copystrings --validate --inputencoding utf-8 --outputencoding UTF-16 English.lproj/InfoPlist.strings --outdir /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Resources/English.lproj ProcessPCH /var/folders/Xy/Xy-bvnxtFpiYBQPED0dK1++++TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/Cioccolata_Prefix-dololiigmwjzkgenggebqtpvbauu/Cioccolata_Prefix.pch.gch Cioccolata_Prefix.pch normal i386 objective-c com.apple.compilers.gcc.4_2 cd /Users/chris/Projects/Mac/Cioccolata setenv LANG en_US.US-ASCII /Developer/usr/bin/gcc-4.2 -x objective-c-header -arch i386 -fmessage-length=0 -pipe -std=gnu99 -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -Wreturn-type -Wunused-variable -isysroot /Developer/SDKs/MacOSX10.5.sdk -mfix-and-continue -mmacosx-version-min=10.5 -gdwarf-2 -iquote /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-generated-files.hmap -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-own-target-headers.hmap -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-all-target-headers.hmap -iquote /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-project-headers.hmap -F/Users/chris/Projects/Mac/Cioccolata/build/Debug -I/Users/chris/Projects/Mac/Cioccolata/build/Debug/include -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/DerivedSources/i386 -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/DerivedSources -c /Users/chris/Projects/Mac/Cioccolata/Cioccolata_Prefix.pch -o /var/folders/Xy/Xy-bvnxtFpiYBQPED0dK1++++TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/Cioccolata_Prefix-dololiigmwjzkgenggebqtpvbauu/Cioccolata_Prefix.pch.gch CompileC build/Cioccolata.build/Debug/Cioccolata.build/Objects-normal/i386/CWHelloWorld.o /Users/chris/Projects/Mac/Cioccolata/CWHelloWorld.m normal i386 objective-c com.apple.compilers.gcc.4_2 cd /Users/chris/Projects/Mac/Cioccolata setenv LANG en_US.US-ASCII /Developer/usr/bin/gcc-4.2 -x objective-c -arch i386 -fmessage-length=0 -pipe -std=gnu99 -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -Wreturn-type -Wunused-variable -isysroot /Developer/SDKs/MacOSX10.5.sdk -mfix-and-continue -mmacosx-version-min=10.5 -gdwarf-2 -iquote /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-generated-files.hmap -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-own-target-headers.hmap -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-all-target-headers.hmap -iquote /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Cioccolata-project-headers.hmap -F/Users/chris/Projects/Mac/Cioccolata/build/Debug -I/Users/chris/Projects/Mac/Cioccolata/build/Debug/include -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/DerivedSources/i386 -I/Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/DerivedSources -include /var/folders/Xy/Xy-bvnxtFpiYBQPED0dK1++++TI/-Caches-/com.apple.Xcode.501/SharedPrecompiledHeaders/Cioccolata_Prefix-dololiigmwjzkgenggebqtpvbauu/Cioccolata_Prefix.pch -c /Users/chris/Projects/Mac/Cioccolata/CWHelloWorld.m -o /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Objects-normal/i386/CWHelloWorld.o Ld /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Cioccolata normal i386 cd /Users/chris/Projects/Mac/Cioccolata setenv MACOSX_DEPLOYMENT_TARGET 10.5 /Developer/usr/bin/gcc-4.2 -arch i386 -dynamiclib -isysroot /Developer/SDKs/MacOSX10.5.sdk -L/Users/chris/Projects/Mac/Cioccolata/build/Debug -F/Users/chris/Projects/Mac/Cioccolata/build/Debug -filelist /Users/chris/Projects/Mac/Cioccolata/build/Cioccolata.build/Debug/Cioccolata.build/Objects-normal/i386/Cioccolata.LinkFileList -install_name @executable_path/../Frameworks/Cioccolata.framework/Versions/A/Cioccolata -mmacosx-version-min=10.5 -framework Foundation -single_module -compatibility_version 1 -current_version 1 -o /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework/Versions/A/Cioccolata Touch /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework cd /Users/chris/Projects/Mac/Cioccolata /usr/bin/touch -c /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework Build CioccolataTest of project CioccolataTest with configuration Debug ProcessInfoPlistFile /Users/chris/Projects/Mac/CioccolataTest/build/Debug/CioccolataTest.webapp/Contents/Info.plist Info.plist cd /Users/chris/Projects/Mac/CioccolataTest builtin-infoPlistUtility Info.plist -expandbuildsettings -platform macosx -o /Users/chris/Projects/Mac/CioccolataTest/build/Debug/CioccolataTest.webapp/Contents/Info.plist PBXCp build/Debug/CioccolataTest.webapp/Contents/Frameworks/Cioccolata.framework /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework cd /Users/chris/Projects/Mac/CioccolataTest /Developer/Library/PrivateFrameworks/DevToolsCore.framework/Resources/pbxcp -exclude .DS_Store -exclude CVS -exclude .svn -resolve-src-symlinks /Users/chris/Projects/Mac/Cioccolata/build/Debug/Cioccolata.framework /Users/chris/Projects/Mac/CioccolataTest/build/Debug/CioccolataTest.webapp/Contents/Frameworks CopyStringsFile /Users/chris/Projects/Mac/CioccolataTest/build/Debug/CioccolataTest.webapp/Contents/Resources/English.lproj/InfoPlist.strings English.lproj/InfoPlist.strings cd /Users/chris/Projects/Mac/CioccolataTest setenv ICONV /usr/bin/iconv /Developer/Library/Xcode/Plug-ins/CoreBuildTasks.xcplugin/Contents/Resources/copystrings --validate --inputencoding utf-8 --outputencoding UTF-16 English.lproj/InfoPlist.strings --outdir /Users/chris/Projects/Mac/CioccolataTest/build/Debug/CioccolataTest.webapp/Contents/Resources/English.lproj CompileC build/CioccolataTest.build/Debug/CioccolataTest.build/Objects-normal/i386/main.o main.m normal i386 objective-c com.apple.compilers.gcc.4_2 cd /Users/chris/Projects/Mac/CioccolataTest setenv LANG en_US.US-ASCII /Developer/usr/bin/gcc-4.2 -x objective-c -arch i386 -fmessage-length=0 -pipe -std=gnu99 -Wno-trigraphs -fpascal-strings -fasm-blocks -O0 -Wreturn-type -Wunused-variable -isysroot /Developer/SDKs/MacOSX10.5.sdk -mfix-and-continue -mmacosx-version-min=10.5 -gdwarf-2 -iquote /Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/CioccolataTest-generated-files.hmap -I/Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/CioccolataTest-own-target-headers.hmap -I/Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/CioccolataTest-all-target-headers.hmap -iquote /Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/CioccolataTest-project-headers.hmap -F/Users/chris/Projects/Mac/CioccolataTest/build/Debug -I/Users/chris/Projects/Mac/CioccolataTest/build/Debug/include -I/Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/DerivedSources/i386 -I/Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/DerivedSources -include /Users/chris/Projects/Mac/CioccolataTest/prefix.pch -c /Users/chris/Projects/Mac/CioccolataTest/main.m -o /Users/chris/Projects/Mac/CioccolataTest/build/CioccolataTest.build/Debug/CioccolataTest.build/Objects-normal/i386/main.o In file included from <command-line>:0: /Users/chris/Projects/Mac/CioccolataTest/prefix.pch:13:35: error: Cioccolata/Cioccolata.h: No such file or directory /Users/chris/Projects/Mac/CioccolataTest/main.m: In function 'main': /Users/chris/Projects/Mac/CioccolataTest/main.m:13: error: 'CWHelloWorld' undeclared (first use in this function) /Users/chris/Projects/Mac/CioccolataTest/main.m:13: error: (Each undeclared identifier is reported only once /Users/chris/Projects/Mac/CioccolataTest/main.m:13: error: for each function it appears in.) /Users/chris/Projects/Mac/CioccolataTest/main.m:13: error: 'hello' undeclared (first use in this function)

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  • Passing Flash variables to PHP.

    - by user340553
    Hi, I have a simple standalone application written in Visual Basic that I'm porting to a browser based application using PHP/javascript. The original VB application has some simple embedded flash games with token and point counters. The token and point values are being passed as variables between the application and the game. I'm trying to achieve the same effect in my PHP port without modifying the actionscript code( using the variables in actionscript that already exist). Below is Visual Basic code that's loading a value from a database and posting that value to flash using FlashVars: Private Sub loadPlayer() Try If CtblPoints.CheckPointsByID(mCard) Then objPoints = CtblPoints.GettblPointsByID(mCard) objPlayerAc = CtblPlayerAccount.GettblPlayerAccountByPlayerID(objPoints.AccountId) objPlayer = CtblPlayer.GettblPlayerByID(objPlayerAc.PlayerID) objPlayerBal = CtblPlayerBalance.GettblPlayerBalanceByID(objPlayerAc.PlayerID) objPlayerAcDetail = CtblPlayerAccountDetail.GettblPlayerAccountDetailByAmount(objPoints.AccountId) strTotalPoints = Convert.ToString(objPlayerAc.Points) strTotalWin = Convert.ToString(objPlayerBal.TokenAmount) 'Dim intTokenAmount As Decimal = Convert.ToDecimal(objPlayerBal.TokenAmount) 'strTotalWin = Convert.ToString(Convert.ToInt64(intTokenAmount * 100)) flashPlayer.Size = panelGame.Size flashPlayer.FlashVars = "totalEntries=" & strTotalPoints & "&credit=" & strTotalWin flashPlayer.LoadMovie(0, strGameFile) flashPlayer.Play() Else Me.Close() Dim frmInvCrd As New frmInvalidCard frmInvCrd.ShowDialog() End If Catch ex As Exception End Try I'm trying to recreate this in PHP, but I'm at a loss as to how to begin implementing it. The variables in flash are declared publicly, and global imports used: import com.atticmedia.console.*; import flash.display.*; import flash.events.*; import flash.geom.*; import flash.media.*; import flash.net.*; import flash.system.*; import flash.utils.*; First declaration of variable 'totalEntries' is: public var totalEntries:int = 0; and this is a snip of totalEntries being used in the actionscript public function notifyServerOfUnwonCredits(param1) { var remainder:* = param1; if (this.useServer) { this.targetWinAmount = 0; this.cancelUpdateOverTime = F9.setEnterFrame(this.updateOverTime); fscommand("OverTime", "" + remainder); this.flashVarsUpdatedAction = function () { originalTotalWin = totalWin; return; }// end function ; } else { this.setTotalEntries(100000); this.setTotalWin(0); } return; }// end function Eventually I'll be passing these values back to a mySQL database. Any insight into this would be extremely helpful, Thanks!

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  • passing multiple vectors to function by reference (using structure)

    - by madman
    Hi StackOverflow, Can someone tell me the correct way of passing multiple vectors to a function that can take only a single argument? (specifically for pthread_create (..) function) I tried the following but it does not seem to work :-( First, I created the following structure struct ip2 { void* obj; int dim; int n_s; vector<vector<vector<double> > > *wlist; vector<int> *nrsv; struct model *pModel; }; The threads that I have created actually needs all these parameters. Since im using pthreads_create I put all this in a structure and then passed the pointer to the structure as an argument to pthread_create (as shown). some_fxn() { //some code struct ip2 ip; ip.obj=(void*) this; ip.n_s=n_s; ip.wlist=&wlist; ip.nrsv=&nrsv; ip.pModel=pModel; ip.dim=dim; pthread_create(&callThd1[lcntr], &attr1, &Cls::Entry, (void*) &ip); } The Entry method looks something like this. void* Cls::Entry(void *ip) { struct ip2 *x; x = (struct ip2 *)ip; (reinterpret_cast<Cls1 *>(x->obj))->Run(x->dim,x->n_s, x->wlist, x->nrsv, x->pModel); } The Run method looks something like this. void Run(int dim, int n_c, vector<vector<vector<double> > > *wlist, vector<int> *nrsv, struct model* pModel ) { //some code for(int k = 0; k < n_c; ++k) { //some code end = index + nrsv[k]; //some code } I get the following error when I try to compile the program. error: no match for ‘operator+’ in ‘index + *(((std::vector<int, std::allocator<int> >*)(((unsigned int)k) * 12u)) + nrsv)’ Can someone tell me how to do it the right way. Madhavan

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  • PyOpenGL - passing transformation matrix into shader

    - by M-V
    I am having trouble passing projection and modelview matrices into the GLSL shader from my PyOpenGL code. My understanding is that OpenGL matrices are column major, but when I pass in projection and modelview matrices as shown, I don't see anything. I tried the transpose of the matrices, and it worked for the modelview matrix, but the projection matrix doesn't work either way. Here is the code: import OpenGL from OpenGL.GL import * from OpenGL.GL.shaders import * from OpenGL.GLU import * from OpenGL.GLUT import * from OpenGL.GLUT.freeglut import * from OpenGL.arrays import vbo import numpy, math, sys strVS = """ attribute vec3 aVert; uniform mat4 uMVMatrix; uniform mat4 uPMatrix; uniform vec4 uColor; varying vec4 vCol; void main() { // option #1 - fails gl_Position = uPMatrix * uMVMatrix * vec4(aVert, 1.0); // option #2 - works gl_Position = vec4(aVert, 1.0); // set color vCol = vec4(uColor.rgb, 1.0); } """ strFS = """ varying vec4 vCol; void main() { // use vertex color gl_FragColor = vCol; } """ # particle system class class Scene: # initialization def __init__(self): # create shader self.program = compileProgram(compileShader(strVS, GL_VERTEX_SHADER), compileShader(strFS, GL_FRAGMENT_SHADER)) glUseProgram(self.program) self.pMatrixUniform = glGetUniformLocation(self.program, 'uPMatrix') self.mvMatrixUniform = glGetUniformLocation(self.program, "uMVMatrix") self.colorU = glGetUniformLocation(self.program, "uColor") # attributes self.vertIndex = glGetAttribLocation(self.program, "aVert") # color self.col0 = [1.0, 1.0, 0.0, 1.0] # define quad vertices s = 0.2 quadV = [ -s, s, 0.0, -s, -s, 0.0, s, s, 0.0, s, s, 0.0, -s, -s, 0.0, s, -s, 0.0 ] # vertices self.vertexBuffer = glGenBuffers(1) glBindBuffer(GL_ARRAY_BUFFER, self.vertexBuffer) vertexData = numpy.array(quadV, numpy.float32) glBufferData(GL_ARRAY_BUFFER, 4*len(vertexData), vertexData, GL_STATIC_DRAW) # render def render(self, pMatrix, mvMatrix): # use shader glUseProgram(self.program) # set proj matrix glUniformMatrix4fv(self.pMatrixUniform, 1, GL_FALSE, pMatrix) # set modelview matrix glUniformMatrix4fv(self.mvMatrixUniform, 1, GL_FALSE, mvMatrix) # set color glUniform4fv(self.colorU, 1, self.col0) #enable arrays glEnableVertexAttribArray(self.vertIndex) # set buffers glBindBuffer(GL_ARRAY_BUFFER, self.vertexBuffer) glVertexAttribPointer(self.vertIndex, 3, GL_FLOAT, GL_FALSE, 0, None) # draw glDrawArrays(GL_TRIANGLES, 0, 6) # disable arrays glDisableVertexAttribArray(self.vertIndex) class Renderer: def __init__(self): pass def reshape(self, width, height): self.width = width self.height = height self.aspect = width/float(height) glViewport(0, 0, self.width, self.height) glEnable(GL_DEPTH_TEST) glDisable(GL_CULL_FACE) glClearColor(0.8, 0.8, 0.8,1.0) glutPostRedisplay() def keyPressed(self, *args): sys.exit() def draw(self): glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) # build projection matrix fov = math.radians(45.0) f = 1.0/math.tan(fov/2.0) zN, zF = (0.1, 100.0) a = self.aspect pMatrix = numpy.array([f/a, 0.0, 0.0, 0.0, 0.0, f, 0.0, 0.0, 0.0, 0.0, (zF+zN)/(zN-zF), -1.0, 0.0, 0.0, 2.0*zF*zN/(zN-zF), 0.0], numpy.float32) # modelview matrix mvMatrix = numpy.array([1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.5, 0.0, -5.0, 1.0], numpy.float32) # render self.scene.render(pMatrix, mvMatrix) # swap buffers glutSwapBuffers() def run(self): glutInitDisplayMode(GLUT_RGBA) glutInitWindowSize(400, 400) self.window = glutCreateWindow("Minimal") glutReshapeFunc(self.reshape) glutDisplayFunc(self.draw) glutKeyboardFunc(self.keyPressed) # Checks for key strokes self.scene = Scene() glutMainLoop() glutInit(sys.argv) prog = Renderer() prog.run() When I use option #2 in the shader without either matrix, I get the following output: What am I doing wrong?

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  • Custom Class to store the properties and passing the class object across the pages - ASP.NEt

    - by NLV
    Hello I've a requirement where i need to pass some objects across the pages. So i created a custom class with all the properties required and created a instance of it and assigned all the properties appropriately. I then put that object in the session and took it the other page. The problem is that even when i set the properties values to the class it is coming as null. I set a breakpoint in the getter-setter and saw that the value itself is coming as null. Code - public class GetDataSetForReports { private Table m_aspTable; private int m_reportID; private string m_accountKey; private string m_siteKey; private string m_imUserName; /// <summary> /// Asp Table containing the filters /// </summary> public Table aspTable { get { return m_aspTable; } set { m_aspTable = aspTable; } } /// <summary> /// Report ID /// </summary> public int reportID { get { return m_reportID; } set { m_reportID = reportID; } } /// <summary> /// All the accounts selected /// </summary> public string accountKey { get { return m_accountKey; } set { m_accountKey = accountKey; } } /// <summary> /// All the sites selected /// </summary> public string siteKey { get { return m_siteKey; } set { m_siteKey = siteKey; } } /// <summary> /// Current User Name /// </summary> public string imUserName { get { return m_imUserName; } set { m_imUserName = imUserName; } } } This is how i'm creating an instance in the page1 and trying to get it in the page2. Page1 Code //Add the objects to the GetDataSetForReports Class GetDataSetForReports oGetDSForReports = new GetDataSetForReports(); oGetDSForReports.aspTable = aspTable; oGetDSForReports.reportID = iReportID; oGetDSForReports.accountKey = AccountKey; oGetDSForReports.siteKey = Sitekey; oGetDSForReports.imUserName = this.imUserName.ToString(); But the values are not getting set at all. The values are not passing to the class (to the setter) at all. Am i making any OOPS blunder? Any ideas? NLV

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  • passing pipe to threads

    - by alaamh
    I see it's easy to open pipe between two process using fork, but how we can passing open pipe to threads. Assume we need to pass out of PROGRAM A to PROGRAM B "may by more than one thread", PROGRAM B send his output to PROGRAM C #include <stdio.h> #include <stdlib.h> #include <pthread.h> struct targ_s { int fd_reader; }; void *thread1(void *arg) { struct targ_s *targ = (struct targ_s*) arg; int status, fd[2]; pid_t pid; pipe(fd); pid = fork(); if (pid == 0) { dup2(STDIN_FILENO, targ->fd_reader); close(fd[0]); dup2(fd[1], STDOUT_FILENO); close(fd[1]); execvp ("PROGRAM B", NULL); exit(1); } else { close(fd[1]); dup2(fd[0], STDIN_FILENO); close(fd[0]); execl("PROGRAM C", NULL); wait(&status); return NULL; } } int main(void) { FILE *fpipe; char *command = "PROGRAM A"; char buffer[1024]; if (!(fpipe = (FILE*) popen(command, "r"))) { perror("Problems with pipe"); exit(1); } char* outfile = "out.dat"; FILE* f = fopen (outfile, "wb"); int fd = fileno( f ); struct targ_s targ; targ.fd_reader = fd; pthread_t thid; if (pthread_create(&thid, NULL, thread1, &targ) != 0) { perror("pthread_create() error"); exit(1); } int len; while (read(fpipe, buffer, sizeof (buffer)) != 0) { len = strlen(buffer); write(fd, buffer, len); } pclose(fpipe); return (0); }

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  • Passing password value through URL

    - by Steven Wright
    OK I see a lot of people asking about passing other values, URLS, random stuff through a URL, but don't find anything about sending a password to a password field. Here is my situation: I have a ton of sites I use on a daily basis with my work and oh about 90% require logins. Obviously remembering 80 bajillion logins for each site is dumb, especially when there are more than one user name I use for each site. So to make life easier, I drew up a nifty JSP app that stores all of my logins in a DB table and creates a user interface for the specific page I want to visit. Each page has a button that sends a username, password into the id parameters of the html inputs. Problem: I can get the usernames and other info to show up just dandy, but when I try and send a password to a password field, it seems that nothing gets received by the page I'm trying to hit. Is there some ninja stuff I need to be doing here or is it just not easily possible? Basically this is what I do now: http://addresshere/support?loginname=steveoooo&loginpass=passwordhere and some of my html looks like this: <form name="userform" method="post" action="index.jsp" > <input type="hidden" name="submit_login" value="y"> <table width="100%"> <tr class="main"> <td width="100" nowrap>Username:</td> <td><input type="text" name="loginname" value="" size="30" maxlength="64"></td> </tr> <tr class="main"> <td>Password: </font></td> <td><input type="password" name="loginpass" value="" size="30" maxlength="64"></td> </tr> <tr class="main"> <td><center><input type="submit" name="submit" value="Login"></center></td> </tr> </table> </form> Any suggestions?

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  • template pass by const reference

    - by 7vies
    Hi, I've looked over a few similar questions, but I'm still confused. I'm trying to figure out how to explicitly (not by compiler optimization etc) and C++03-compatible avoid copying of an object when passing it to a template function. Here is my test code: #include <iostream> using namespace std; struct C { C() { cout << "C()" << endl; } C(const C&) { cout << "C(C)" << endl; } ~C() { cout << "~C()" << endl; } }; template<class T> void f(T) { cout << "f<T>" << endl; } template<> void f(C c) { cout << "f<C>" << endl; } // (1) template<> void f(const C& c) { cout << "f<C&>" << endl; } // (2) int main() { C c; f(c); return 0; } (1) accepts the object of type C, and makes a copy. Here is the output: C() C(C) f<C> ~C() ~C() So I've tried to specialize with a const C& parameter (2) to avoid this, but this simply doesn't work (apparently the reason is explained in this question). Well, I could "pass by pointer", but that's kind of ugly. So is there some trick that would allow to do that somehow nicely? EDIT: Oh, probably I wasn't clear. I already have a templated function template<class T> void f(T) {...} But now I want to specialize this function to accept a const& to another object: template<> void f(const SpecificObject&) {...} But it only gets called if I define it as template<> void f(SpecificObject) {...}

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  • passing a class method as opposed to a function in std::sort

    - by memC
    hi, Within a class, I am trying to sort a vector, by passing a method of the same class. But it gives errors at the time of compilation. Can anyone tell what the problem is? Thank you! it gives the following error: argument of type bool (Sorter::)(D&, D&)' does not matchbool (Sorter::*)(D&, D&)' I have also tried using sortBynumber(D const& d1, D const& d2) #include<vector> #include<stdio.h> #include<iostream> #include<algorithm> class D { public: int getNumber(); D(int val); ~D(){}; private: int num; }; D::D(int val){ num = val; }; int D::getNumber(){ return num; }; class Sorter { public: void doSorting(); bool sortByNumber(D& d1, D& d2); std::vector<D> vec_D; Sorter(); ~Sorter(){}; private: int num; }; Sorter::Sorter(){ int i; for ( i = 0; i < 10; i++){ vec_D.push_back(D(i)); } }; bool Sorter::sortByNumber(D& d1, D& d2){ return d1.getNumber() < d2.getNumber(); }; void Sorter::doSorting(){ std::sort(vec_D.begin(), vec_D.end(), this->sortByNumber); }; int main(){ Sorter s; s.doSorting(); std::cout << "\nPress RETURN to continue..."; std::cin.get(); return 0; }

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  • Passing custom info to mongrel_rails start

    - by whaka
    One thing I really don't understand is how I can pass custom start-up options to a mongrel instance. I see that a common approach is the use environment variables, but in my environment this is not going to work because my rails application serves many different clients. Much code is shared between clients, but there are also many differences which I implement by subclassing controllers and views to overload or extend existing features or introduce new ones. To make this all work, I simply add the paths to client specific modules the module load path ($:). In order to start the application for a particular client, I could now use an environment variable like say, TARGET=AMAZONE. Unfortunately, on some systems I'm running multiple mongrel clusters, each cluster serving a different client. Some of these systems run under Windows and to start mongrel I installed mongrel_services. Clearly, this makes my environment variable unsuitable. Passing this extra bit of data to the application is proving to be a real challenge. For a start, mongrel_rails service_install will reject any [custom] command line parameters that aren't documented. I'm not too concerned as installing the services using the install program is trivial. However, even if I manage to install mongrel_services such that when run it passes the custom command line option --target to mongrel_rails start, I get an error because mongrel_rails doesn't recognize the switch. So here were the things I looked at: Pass an extra parameter: mongrel_rails start --target XYZ ... use a config file and add target:XYZ, then do: mongrel_rails start -C x:\myapp\myconfig.yml modify the file: Ruby\lib\ruby\gems\1.8\gems\mongrel-1.1.5-x86-mswin32-60\lib\mongrel\command.rb Perhaps I can use the --script option, but all docs that I found on it were for Unix 1 and 2 simply don't work. I played with 4 but never managed it to do anything. So I had no choice but to go with 3. While it is relatively simple, I hate changing ruby library code. Particularly disappointing is that 2 doesn't work. I mean what is so unreasonable about adding other [custom] options in the config file? Actually I think this is a fundamental piece that is missing in rails. Somehow, the application should be able to register and access command line arguments it expects. If anybody has a good idea how to do this more elegantly using the current infrastructure, I have a chocolate fish to give away!!!

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  • Passing input value thru XML loop and return value

    - by Mike Dyer
    "X" is reading the form value, but it is still passing and older "var thisMarket" value. The objective is to take a zip code via HTML form: <form id="market" name="market" onSubmit="return validateZIP(this.zip.value);" method="get" action=""> <input type="text" name="zip" id="zip" value="zipcode" onfocus="if(!this._haschanged){this.value=''};this._haschanged=true;" style="float:left; width:100px; margin-top:5px;"> <input type="image" style="float:left; margin-top:5px; border: 0pt none ; width: 22px; height:17px;" src="images/nav/bottom/linkbar/btn_search_btn.gif" onClick="findLda();"> </form> The script being passed thru is: function findLda(x){ marketName = new Array(); marketURL = new Array(); zip = new Array(); zip_temp = new Array(); zipMatch = false; var shareZip = "Shared Zips"; var thisMarket = "Market value"; xmlDoc=loadXML("/_includes/market.xml"); var Offer,node; document.getElementById('market').innerHTML=''; for(var j=0; j<xmlDoc.getElementsByTagName('market').length; j++){ node = xmlDoc.getElementsByTagName('market')[j]; marketName.push(node.childNodes[3].textContent); marketURL.push(node.childNodes[5].textContent); for(var k=0; k<node.getElementsByTagName('zip').length; k++){ if(node.getElementsByTagName('zip')[k].textContent!=null){ zip_temp.push(node.getElementsByTagName('zip')[k].textContent); } } zip.push(zip_temp); zip_temp = new Array(); } //loop the zip Array to find a match for the query Zip. for(k=0; k<zip.length; k++){ for(m=0; m<zip[k].length; m++){ if(x == zip[k][m].toString()){ zipMatch=true; thisMarket=marketName[k].toString(); } } } alert(thisMarket); } The objective naturally is to take field input (A), pass it thru market.xml - initialize a loop and match a zip (B), alert the result (C). Looking for any direction with what is existing or a completely new direction. Thanks!

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  • Passing a panel widget to a function

    - by user2939801
    I have written a quite complex script which calls a server handler to refresh elements in a grid at the press of a button. For code re-use and consistent behaviour, I am wanting to call that server handler directly during the initial painting of the grid. When the server handler gets called by clicking on the button, all expected widgets are available and can be queried with e.parameter.widget etc. When I call the function directly and pass it the panel variable, the value of e is just 'AbsolutePanel'. Is there some way I can emulate the addCallbackElement way of passing the entire panel and all widgets it contains to the function? Or a way of automatically firing a server handler on script start? Please forgive any syntax errors below, I have pruned 500 lines of code down to the pertinent bits! Thanks Tony function doGet() { var app = UiApp.createApplication(); var mainPanel = app.createAbsolutePanel(); var monthsAbbr = ['Jan.', 'Feb.', 'Mar.', 'Apr.', 'May.', 'Jun.', 'Jul.', 'Aug.', 'Sep.', 'Oct.', 'Nov.', 'Dec.']; var Dates = Array(); var period = 5; var dateHidden = Array(); var dayOfMonth = new Date(((period * 28) + 15887) * 86400000); var dateString = ''; var dayOfWeek = 0; for (var i=0; i<84; i++) { dateString = dayOfMonth.getDate() + ' ' + monthsAbbr[dayOfMonth.getMonth()] + ' ' + (dayOfMonth.getFullYear() - 2000); Dates [i] = dateString; dateHidden[i] = app.createHidden('dates'+i, dateString).setId('dates'+i); mainPanel.add(dateHidden[i]); dayOfMonth = new Date(dayOfMonth.getTime() + 86400000); } var buttonReset = app.createButton('Reset').setId('buttonReset'); var handlerChange = app.createServerHandler('myHandlerChange'); handlerChange.addCallbackElement(mainPanel); mainPanel.add(buttonReset.addChangeHandler(handlerChange)); app.add(mainPanel); myHandlerChange(mainPanel); return app; } function myHandlerChange(e) { var app = UiApp.getActiveApplication(); Logger.log('Here are the widgets passed into the function: ' + Utilities.jsonStringify(e)); return app; }

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  • SQL Server Express 2005 Merge Replication using RMO causes Null Reference exception

    - by Craig Shearer
    I'm trying to use RMO to programmatically perform merge synchronization. I've basically copied the SQL Server example code, as follows: // Create a connection to the Subscriber. ServerConnection conn = new ServerConnection(subscriberName); MergePullSubscription subscription; try { // Connect to the Subscriber. conn.Connect(); // Define the pull subscription. subscription = new MergePullSubscription(subscriptionDbName, publisherName, publicationDbName, publicationName, conn, false); // If the pull subscription exists, then start the synchronization. if (subscription.LoadProperties()) { // Check that we have enough metadata to start the agent. if (subscription.PublisherSecurity != null || subscription.DistributorSecurity != null) { subscription.SynchronizationAgent.Synchronize(); } else { throw new ApplicationException("There is insufficent metadata to " + "synchronize the subscription. Recreate the subscription with " + "the agent job or supply the required agent properties at run time."); } } else { // Do something here if the pull subscription does not exist. throw new ApplicationException(String.Format( "A subscription to '{0}' does not exist on {1}", publicationName, subscriberName)); } } catch (Exception ex) { // Implement appropriate error handling here. throw new ApplicationException("The subscription could not be " + "synchronized. Verify that the subscription has " + "been defined correctly.", ex); } finally { conn.Disconnect(); } I've got the server merge publication defined correctly, but when I run the above code, I get a null reference exception on the call to: subscription.SynchronizationAgent.Synchronize(); The stack trace is as follows: at Microsoft.SqlServer.Replication.MergeSynchronizationAgent.StatusEventSinkMethod(String message, Int32 percent, Int32* returnValue) at Test.ConsoleTest.Program.SynchronizePullSubscription() in F:\Visual Studio Projects\Test\source\Test.ConsoleTest\Program.cs:line 124 It seems, from the stack trace, like something to do with the Status event, but I don't have a handler defined, and defining one makes no difference.

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  • C# Web Reference and PHP

    - by Louis
    I am attempting to call a Web Service (created in PHP) from my C# application. I have successfully added the Web Reference in Visual Studios, however I cannot figure out exactly how to invoke the call to the web service. I have been following this tutorial: http://sanity-free.org/article25.html however when I try and compile I get a "The type or namespace name 'SimpleService' could not be found". My C# code is as follows: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO; namespace inVision_OCR { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void translateButton_Click(object sender, EventArgs e) { // We need to snap the image here somehow . . . // Open up the image and read its contents into a string FileStream file = new FileStream("\\Hard Disk\\ocr_images\\test.jpg", FileMode.Open); StreamReader sr = new StreamReader(file); string s = sr.ReadToEnd(); sr.Close(); // Using SOAP, pass this message to our development server SimpleService svc = new SimpleService(); string s1 = svc.getOCR("test"); MessageBox.Show(s); } } } Any help would be appreciated.

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  • How to propertly reference a namespace for Microsoft.Sdc.Tasks.XmlFile.GetValue

    - by æther
    Hi, i want to use MSBuild to insert a custom xml element into web.config. After looking up online, i found such solution: 1) Store element in the .build file in projectextensions <ProjectExtensions> <CustomElement name="CustomElementName"> ... </CustomElement> </ProjectExtensions> 2) Retrieve the element with GetValue <Target name="ModifyConfig"> <XmlFile.GetValue Path="$(MSBuildProjectFullPath)" XPath="Project/ProjectExtensions/CustomElement[@name='CustomElementName']"> <Output TaskParameter="Value" PropertyName="CustomElementProperty"/> </XmlFile.GetValue> </Target> This will not work as i need to reference a namespace the .build project is using for it to find the needed element (checked the .build file with XPath Visualizer). So, i look up for a further solution and come to this: <ItemGroup> <XmlNamespace Include="MSBuild"> <Prefix>msb</Prefix> <Uri>http://schemas.microsoft.com/developer/msbuild/2003</Uri> </XmlNamespace> </ItemGroup> <Target name="ModifyConfig"> <XmlFile.GetValue Path="$(MSBuildProjectFullPath)" Namespaces="$(XmlNamespace)" XPath="/msb:Project/msb:ProjectExtensions/msb:CustomElement[@name='CustomElementName']" > <Output TaskParameter="Value" PropertyName="CustomElementProperty"/> </XmlFile.GetValue> </Target> But for some reason namespace is not recognized - MSBuild reports the following error: C:...\mybuild.build(53,9): error : A task error has occured. C:...\mybuild.build(53,9): error : Message = Namespace prefix 'msb' is not defined. I tried some variations of referencing it differently but none work, and there is not much about propertly referencing those namespaces online also. Can you tell me what am i doing wrong and how to do it propertly?

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  • Dynamically created "CheckBoxList" in placeholder controls throwing null reference exception error d

    - by newName
    I have a web form that will dynamically create a number of checkboxlist filled with data based on the number of row in database. Then this is added to a placeholder to be displayed. theres a button when clicked, will add the selected check boxes value into database but right now when the button is clicked and after the postback, the page will show the error "System.NullReferenceException". the following code is written in Page_Load in (!Page.IsNotPostBack) and in a loop that will dynamically create a number of checkboxlist: CheckBoxLis chkContent = new CheckBoxList(); chkContent.ID = chkIDString; //chkIDString is an incremental int based on the row count chkContent.RepeatDirection = RepeatDirection.Horizontal; foreach (List<t> contentList in List<t>) //data retrieved as List<t> using LINQ { ListItem contents = new ListItem(); contents.Text = contentList.Title; contents.Value = contentList.contentID.ToString(); chkContent.Items.Add(contents); } plcSchool.Controls.Add(chkContent); //plcSchool is my placeholder plcSchool.Controls.Add(new LiteralControl("<br>")); protected void btnAdd_Click(object sender, EventArgs e) { CheckBoxList cbl = Page.FindControl("chkContent4") as CheckBoxList; Response.Write(cbl.SelectedValue.ToString()); // now im just testing to get the value from one of the checkboxlist } Anyone able to help, as it seems the controls are not recreated after the postback, therefore it can't find the control and throwing the null reference exception.

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  • How do I reference Django Model from another model

    - by user313943
    Im looking to create a view in the admin panel for a test program which logs Books, publishers and authors (as on djangoproject.com) I have the following two models defined. class Author(models.Model): first_name = models.CharField(max_length=30) last_name = models.CharField(max_length=30) email = models.EmailField() def __unicode__(self): return u'%s %s' % (self.first_name, self.last_name) class Book(models.Model): title = models.CharField(max_length=100) authors = models.ManyToManyField(Author) publisher = models.ForeignKey(Publisher) publication_date = models.DateField() def __unicode__(self): return self.title What I want to do, is change the Book model to reference the first_name of any authors and show this using admin.AdminModels. #Here is the admin model I've created. class BookAdmin(admin.ModelAdmin): list_display = ('title', 'publisher', 'publication_date') # Author would in here list_filter = ('publication_date',) date_hierarchy = 'publication_date' ordering = ('-publication_date',) fields = ('title', 'authors', 'publisher', 'publication_date') filter_horizontal = ('authors',) raw_id_fields = ('publisher',) As I understand it, you cannot have two ForeignKeys in the same model. Can anyone give me an example of how to do this? I've tried loads of different things and its been driving me mad all day. Im pretty new to Python/Django. Just to be clear - I'd simply like the Author(s) First/Last name to appear alongside the book title and publisher name. Thanks

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  • ASP.NET MVC: null reference exception using HtmlHelper.TextBox and custom model binder

    - by mr.nicksta
    I have written a class which implements IModelBinder (see below). This class handles a form which has 3 inputs each representing parts of a date value (day, month, year). I have also written a corresponding HtmlHelper extension method to print out three fields on the form. When the day, month, year inputs are given values which can be parsed, but a seperate value fails validation, all is fine - the fields are repopulated and the page served to the user as expected. however when an invalid values are supplied and a DateTime cannot be parsed, i return an arbitrary DateTime so that the fields will be repopulated when returned to the user. I read up on similar problems people have had and they all seemed to be due to lack of calling SetModelValue(). I wasn't doing this, but even after adding the problem has not been resolved. public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { string modelName = bindingContext.ModelName; string monthKey = modelName + ".Month"; string dayKey = modelName + ".Day"; string yearKey = modelName + ".Year"; //get values submitted on form string year = bindingContext.ValueProvider[yearKey].AttemptedValue; string month = bindingContext.ValueProvider[monthKey].AttemptedValue; string day = bindingContext.ValueProvider[dayKey].AttemptedValue; DateTime parsedDate; if (DateTime.TryParse(string.Format(DateFormat, year, month, day), out parsedDate)) return parsedDate; //could not parse date time report error, return current date bindingContext.ModelState.AddModelError(yearKey, ValidationErrorMessages.DateInvalid); //added this after reading similar problems, does not fix! bindingContext.ModelState.SetModelValue(modelName, bindingContext.ValueProvider[modelName]); return DateTime.Today; } the null reference exception is thrown when i attempt to create a textbox for the Year property of the date, but strangely not for Day or Month! Can anyone offer an explanation as to why this is? Thanks :-)

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  • ASP.Net MVC Object Reference in Edit View when using DropDownListFor()

    - by hermiod
    This question is related to another I ask recently, it can be found here for some background information. Here is the code in the Edit ActionResult: public virtual ActionResult Edit(int id) { ///Set data for DropDownLists. ViewData["MethodList"] = tr.ListMethods(); ViewData["GenderList"] = tr.ListGenders(); ViewData["FocusAreaList"] = tr.ListFocusAreas(); ViewData["SiteList"] = tr.ListSites(); ViewData["TypeList"] = tr.ListTalkbackTypes(); ViewData["CategoryList"] = tr.ListCategories(); return View(tr.GetTalkback(id)); } I add lists to the ViewData to use in the dropdownlists, these are all IEnumerable and are all returning values. GetTalkback() returns an Entity framework object of type Talkback which is generated from the Talkback table. The DropDownListFor code is: <%: Html.DropDownListFor(model=>model.method_id,new SelectList(ViewData["MethodList"] as IEnumerable<SelectListItem>,"Value","Text",Model.method_id)) %> The record I am viewing has values in all fields. When I click submit on the View, I get an Object reference not set to an instance of an object. error on the above line. There are a number of standard fields in the form prior to this, so the error is only occurring on dropdown lists, and it is occurring on all of them. Any ideas? This is my first foray in to MVC, C#, and Entity so I am completely lost!

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  • Microsoft Word Macro - Exporting Word Review Comments - How do you reference the sentence related to

    - by jspeaks
    I am trying to export of a Word document review comments. I want to export the sentence selection that was commented on followed by the comment. Screen shot of the image: http://jspeaks.com/mswordcomment.png I have found code to loop through the document comments, but I cannot figure out how to reference the sentence selection that the comment was related to. The current logic is: Sub ExportComments() Dim s As String Dim cmt As Word.Comment Dim doc As Word.Document For Each cmt In ActiveDocument.Comments s = s & cmt.Initial & cmt.Index & "," & cmt.Range.Text & vbCr Next Set doc = Documents.Add doc.Range.Text = s End Sub I tinkered with Selection.Range, however I cannot determine the proper object or property that contains the referenced sentence. I would like to produce output like the follow (if we use the example in picture above): Sentence: Here are more sentences that contain interesting facts - Comment: This is an interesting fact. Sentence: Here are more sentences that contain interesting facts. Here are more sentences that contain interesting facts. - Comment: This is a very interesting fact

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  • passing hashes to a subroutine

    - by Vishalrix
    In one of my main( or primary) routines,I have two or more hashes. I want the subroutine foo() to recieve these possibly-multiple hashes as distinct hashes. Right now I have no preference if they go by value, or as references. I am struggling with this for the last many hours and would appreciate help, so that I dont have to leave perl for php! ( I am using mod_perl, or will be) Right now I have got some answer to my requirement, shown here From http://forums.gentoo.org/viewtopic-t-803720-start-0.html # sub: dump the hash values with the keys '1' and '3' sub dumpvals { foreach $h (@_) { print "1: $h->{1} 3: $h->{3}\n"; } } # initialize an array of anonymous hash references @arr = ({1,2,3,4}, {1,7,3,8}); # create a new hash and add the reference to the array $t{1} = 5; $t{3} = 6; push @arr, \%t; # call the sub dumpvals(@arr); I only want to extend it so that in dumpvals I could do something like this: foreach my %k ( keys @_[0]) { # use $k and @_[0], and others } The syntax is wrong, but I suppose you can tell that I am trying to get the keys of the first hash ( hash1 or h1), and iterate over them. How to do it in the latter code snippet above?

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