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  • JTable's and DefaultTableModel's row indexes lose their synchronization after I sort JTable

    - by Stefanos Kargas
    JAVA NETBEANS // resultsTable, myModel JTable resultsTable; DefaultTableModel myModel; //javax.swing.table.DefaultTableModel myModel = (DefaultTableModel) resultsTable.getModel(); // event of clicking on item of table String value = (String) myModel.getValueAt(resultsTable.getSelectedRow(), columnIndex) I use JTable and DefaultTableModel to view a table of various info and I want to get a value of a certain column of the selected index of the table. The code I wrote above works fine except when: I use the sort of the GUI (click on the field name I want to sort on the table) The table is properly sorted but after that when I select a row, it gets the value of the row that was there before the sort. This means that after sorting (using the JTable's GUI) the 'myModel' and 'resultsTable' objects have different row indexes. How do I synchronize those two?

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  • NHibernate mapping error SQL Server 2008 Express

    - by developer
    Hi All, I tried an example from NHibernate in Action book and when I try to run the app, it throws an exception saying "Could not compile the mapping document: HelloNHibernate.Employee.hbm.xml" Below is my code, Employee.hbm.xml <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true"> <class name="HelloNHibernate.Employee, HelloNHibernate" lazy="false" table="Employee"> <id name="id" access="field"> <generator class="native"/> </id> <property name="name" access="field" column="name"/> <many-to-one access="field" name="manager" column="manager" cascade="all"/> </class> Program.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; using NHibernate; using System.Reflection; using NHibernate.Cfg; namespace HelloNHibernate { class Program { static void Main(string[] args) { CreateEmployeeAndSaveToDatabase(); UpdateTobinAndAssignPierreHenriAsManager(); LoadEmployeesFromDatabase(); Console.WriteLine("Press any key to exit..."); Console.ReadKey(); } static void CreateEmployeeAndSaveToDatabase() { Employee tobin = new Employee(); tobin.name = "Tobin Harris"; using (ISession session = OpenSession()) { using (ITransaction transaction = session.BeginTransaction()) { session.Save(tobin); transaction.Commit(); } Console.WriteLine("Saved Tobin to the database"); } } static ISession OpenSession() { if (factory == null) { Configuration c = new Configuration(); c.AddAssembly(Assembly.GetCallingAssembly()); factory = c.BuildSessionFactory(); } return factory.OpenSession(); } static void LoadEmployeesFromDatabase() { using (ISession session = OpenSession()) { IQuery query = session.CreateQuery("from Employee as emp order by emp.name asc"); IList<Employee> foundEmployees = query.List<Employee>(); Console.WriteLine("\n{0} employees found:", foundEmployees.Count); foreach (Employee employee in foundEmployees) Console.WriteLine(employee.SayHello()); } } static void UpdateTobinAndAssignPierreHenriAsManager() { using (ISession session = OpenSession()) { using (ITransaction transaction = session.BeginTransaction()) { IQuery q = session.CreateQuery("from Employee where name='Tobin Harris'"); Employee tobin = q.List<Employee>()[0]; tobin.name = "Tobin David Harris"; Employee pierreHenri = new Employee(); pierreHenri.name = "Pierre Henri Kuate"; tobin.manager = pierreHenri; transaction.Commit(); Console.WriteLine("Updated Tobin and added Pierre Henri"); } } } static ISessionFactory factory; } } Employee.cs using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace HelloNHibernate { class Employee { public int id; public string name; public Employee manager; public string SayHello() { return string.Format("'Hello World!', said {0}.", name); } } } App.config <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler,NHibernate"/> </configSections> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property> <property name="connection.connection_string"> Data Source=SQLEXPRESS2008;Integrated Security=True; User ID=SQL2008;Password=;initial catalog=HelloNHibernate </property> <property name="dialect">NHibernate.Dialect.MsSql2008Dialect</property> <property name="show_sql">false</property> </session-factory> </hibernate-configuration> </configuration>

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  • Optimize SQL databases by adding index columns

    - by Viktor Sehr
    This might be implementation specific so the question regards how SQL databases is generally implemented. Say I have a database looking like this; Product with columns [ProductName] [Price] [Misc] [Etc] Order with columns [OrderID] [ProductName] [Quantity] [Misc] [Etc] ProductName is primary key of Product, of some string type and unique. OrderID is primary key and of some integer type, and ProductName being a foreign key. Say I change the primary key of Product to a new column of integer type ie [ProductID] Would this reduce the database size and optimize lookups joining these two tables (and likewise operations), or are these optimizations performed automatically by (most/general/main) SQL database implementations?

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  • C# Winforms ADO.NET - DataGridView INSERT starting with null data

    - by Geo Ego
    I have a C# Winforms app that is connecting to a SQL Server 2005 database. The form I am currently working on allows a user to enter a large amount of different types of data into various textboxes, comboboxes, and a DataGridView to insert into the database. It all represents one particular type of machine, and the data is spread out over about nine tables. The problem I have is that my DataGridView represents a type of data that may or may not be added to the database. Thus, when the DataGridView is created, it is empty and not databound, and so data cannot be entered. My question is, should I create the table with hard-coded field names representing the way that the data looks in the database, or is there a way to simply have the column names populate with no data so that the user can enter it if they like? I don't like the idea of hard-coding them in case there is a change in the database schema, but I'm not sure how else to deal with this problem.

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  • String.IsNullOrEmpty and Datarow.IsXnull

    - by Jon
    How can I improve this code? What has made this long winded is the fact that I can't use string.IsNullOrEmpty on a data row and instead I have to use a dr.IsHOUSENUMBERNull method AND the string.IsNullOrEmpty to check if it is empty. Why is this? The column in the database is sometimes empty and sometimes NULL. I'm sure this can be written better: If Not dr.IsHOUSENUMBERNull Then If Not String.IsNullOrEmpty(dr.HOUSENUMBER) Then sbAddress.AppendLine(dr.HOUSENUMBER + " " + dr.ADDRESS1) Else sbAddress.AppendLine(dr.ADDRESS1) End If Else sbAddress.AppendLine(dr.ADDRESS1) End If

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  • How to make a div to fill a remaining horizontal space (a very simple but annoying problem for CSS e

    - by janoChen
    I have 2 divs: one in the left side and one in the right side of my page. The one in the left side has fixed width and I want the one of the right side to fill the remaining space. The one on the right side is the navigation and I want it to to fill the remaining space on it right side: My CSS: #search { width: 160px; height: 25px; float: left; background-color: #FFF; } #navigation { width: 780 float: left; /*background-color: url('../images/transparent.png') ;*/ background-color: #A53030; } My Html: <div id="search"> </div> <?php include("navigation.html"); ?> <div id="left-column"> Thank in advance!

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  • asp.net ajax, change asp:image imageurl

    - by maxxxee
    I have an update panel within which a sortable grid is present. While sorting, I have to change an image which shows the sort direction. The sort is an ajax operation initiated by a linkbutton for each column. Everything works fine except the image control. I am able to toggle visible property to show and hide it but, not able to change the ImageUrl property. imagesort.ImageUrl = "~/images/asc.jpg"; imagesort.Visible = true; The above code shows the image but the image is always the imageurl given in the markup not what is set in the code. If imageurl is not specified in the markup, no image(broken image) is shown irrespective of the above code.

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  • telerik mvc grid access cell data to enable columns.Command

    - by AZee
    Hi! I can't seem to find a way to reference the value in a column in the grid, in my case it is the StatusId. Based on the cell value in this row, for the StatusId, I need to return a true or false to the method ".Visible(???)". It would be nice to find the answer in the documentation online but I haven't been able to. I find it hard to believe that I would be the first person who ever needed this functionality. I would be most appreciative of any assistance since no one in the telerik forums know. .Columns(columns => { columns.Command(commands => { commands.Edit().ButtonType(ButtonType); commands.Delete().ButtonType(ButtonType); }).Width(90).Visible(???); Thanks! AZee

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  • How can I make two "user" editable areas in Wordpress?

    - by thatryan
    Hi all, is there a way to have two posting areas in Wordpress, for clients who can not go into any HTML? Basically the template has 3 columns. One is vertical nav, thats no prob. Second is like a "sidebar" but where the main post will go, a skinny column. Third is large, "main area" size, but will also be user editable content. Does that make sense? Has anyone done something like this before? Thank you.

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  • complex mysql rank !

    - by silversky
    I have a tb with this col: ein, los, id ... I whant to order the table by this index: win / ( win + los ) * 30 + win / SUM(win) * 70 and then to find the rank for two id's. I'm not very good on mysql, so whath I wrote it's totally wrong: $stmt=$con-prepare("SET @rk := 0"); $stmt=$con-prepare("SELECT rank, id FROM ( SELECT @rk := @rk + 1 AS rank, (win/(win+los)*30+win/SUM(win)*70) AS index, win, los, id FROM tb_name ORDER BY index DESC) as result WHERE id=? AND id=?"); $stmt - bind_param ("ii", $id1, $id2); $stmt - execute(); $stmt - bind_result($rk, $idRk); And also this query it supouse to run maybe every 5-10 sec for every user, so I'm trying to find something very, very fast. if it's necesary I could add, change, delete any column, in order to be as faster as posible.

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  • Why "alt" attribute for <img> tag has been considered mandatory by the HTML validator .. ?

    - by infant programmer
    Is there any logical or technical reason (with the W3C validation) for making alt as required attribute .. This is my actual problem:though my page is perfect enough with respect to W3C validation rules .. Only error I am getting is line XX column YY - Error: required attribute "ALT" not specified I know the significance of "alt" attribute and I have omitted that where it is unnecessary .. (to be more elaborate .. I have added the image to increase the beauty of my page and I don't want alt attribute to show irrelevant message to the viewer) getting rid of the error is secondary .. rather I am curious to know whether is it a flaw with validation rules .. ?? I thank stackOverflow and all the members who responded me .. I got my doubt clarified .. :-)

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  • Fast block placement algorithm, advice needed?

    - by James Morris
    I need to emulate the window placement strategy of the Fluxbox window manager. As a rough guide, visualize randomly sized windows filling up the screen one at a time, where the rough size of each results in an average of 80 windows on screen without any window overlapping another. It is important to note that windows will close and the space that closed windows previously occupied becomes available once more for the placement of new windows. The window placement strategy has three binary options: Windows build horizontal rows or vertical columns (potentially) Windows are placed from left to right or right to left Windows are placed from top to bottom or bottom to top Why is the algorithm a problem? It needs to operate to the deadlines of a real time thread in an audio application. At this moment I am only concerned with getting a fast algorithm, don't concern yourself over the implications of real time threads and all the hurdles in programming that that brings. So far I have two choices which I have built loose prototypes for: 1) A port of the Fluxbox placement algorithm into my code. The problem with this is, the client (my program) gets kicked out of the audio server (JACK) when I try placing the worst case scenario of 256 blocks using the algorithm. This algorithm performs over 14000 full (linear) scans of the list of blocks already placed when placing the 256th window. 2) My alternative approach. Only partially implemented, this approach uses a data structure for each area of rectangular free unused space (the list of windows can be entirely separate, and is not required for testing of this algorithm). The data structure acts as a node in a doubly linked list (with sorted insertion), as well as containing the coordinates of the top-left corner, and the width and height. Furthermore, each block data structure also contains four links which connect to each immediately adjacent (touching) block on each of the four sides. IMPORTANT RULE: Each block may only touch with one block per side. The problem with this approach is, it's very complex. I have implemented the straightforward cases where 1) space is removed from one corner of a block, 2) splitting neighbouring blocks so that the IMPORTANT RULE is adhered to. The less straightforward case, where the space to be removed can only be found within a column or row of boxes, is only partially implemented - if one of the blocks to be removed is an exact fit for width (ie column) or height (ie row) then problems occur. And don't even mention the fact this only checks columns one box wide, and rows one box tall. I've implemented this algorithm in C - the language I am using for this project (I've not used C++ for a few years and am uncomfortable using it after having focused all my attention to C development, it's a hobby). The implementation is 700+ lines of code (including plenty of blank lines, brace lines, comments etc). The implementation only works for the horizontal-rows + left-right + top-bottom placement strategy. So I've either got to add some way of making this +700 lines of code work for the other 7 placement strategy options, or I'm going to have to duplicate those +700 lines of code for the other seven options. Neither of these is attractive, the first, because the existing code is complex enough, the second, because of bloat. The algorithm is not even at a stage where I can use it in the real time worst case scenario, because of missing functionality, so I still don't know if it actually performs better or worse than the first approach. What else is there? I've skimmed over and discounted: Bin Packing algorithms: their emphasis on optimal fit does not match the requirements of this algorithm. Recursive Bisection Placement algorithms: sounds promising, but these are for circuit design. Their emphasis is optimal wire length. Both of these, especially the latter, all elements to be placed/packs are known before the algorithm begins. I need an algorithm which works accumulatively with what it is given to do when it is told to do it. What are your thoughts on this? How would you approach it? What other algorithms should I look at? Or even what concepts should I research seeing as I've not studied computer science/software engineering? Please ask questions in comments if further information is needed. [edit] If it makes any difference, the units for the coordinates will not be pixels. The units are unimportant, but the grid where windows/blocks/whatever can be placed will be 127 x 127 units.

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  • jqgrid ASP.NET MVC -- getting data right for the grid.

    - by SamM09
    Here is my dilemma, I have not been able to manipulate my data to a form fitting to jqgrid standards. This is my first time using the jqgrid and I've spent a lot of time reading up on it. My js code is as follows: jQuery("#list").jqGrid({ url: '/Home/ListContacts/', dataType: "json", contentType: "application/json; charset=utf-8", mtype: 'POST', colNames: ['First Name', 'MI', 'Last Name'], colModel: [ { name: 'First Name', index: 'FName', width: 40, align: 'left' }, { name: 'MI', index: 'MInitial', width: 40, align: 'left' }, { name: 'Last Name', index: 'LName', width: 400, align: 'left'}], pager: jQuery('#pager'), rowNum: 10, rowList: [5, 10, 20, 50], sortname: 'Id', sortorder: "desc", repeatitems: false, viewrecords: true, imgpath: '/scripts/themes/basic/images', caption: 'My first grid' }); }); what im getting from the database: [["4","Jenna","Mccarthy"],["56","wer","weoiru"]] Now correct me if I am wrong, but the index: in my colModel refers to the column names in my database right? Could someone point to a reference that is straight forward or just start me off with this I would be most grateful.

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  • Counting number of children in hierarchical SQL data

    - by moontear
    Hello, for a simple data structure such as so: ID parentID Text Price 1 Root 2 1 Flowers 3 1 Electro 4 2 Rose 10 5 2 Violet 5 6 4 Red Rose 12 7 3 Television 100 8 3 Radio 70 9 8 Webradio 90 For reference, the hierarchy tree looks like this: ID Text Price 1 Root |2 Flowers |-4 Rose 10 | |-6 Red Rose 12 |-5 Violet 5 |3 Electro |-7 Television 100 |-8 Radio 70 |-9 Webradio 90 I'd like to count the number of children per level. So I would get a new column "NoOfChildren" like so: ID parentID Text Price NoOfChildren 1 Root 8 2 1 Flowers 3 3 1 Electro 3 4 2 Rose 10 1 5 2 Violet 5 0 6 4 Red Rose 12 0 7 3 Television 100 0 8 3 Radio 70 1 9 8 Webradio 90 0 I read a few things about hierarchical data, but I somehow get stuck on the multiple inner joins on the parentIDs. Maybe someone could help me out here. moon

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  • JTable custom header renderer that looks like other headers with nimbus look and feel?

    - by startoftext
    Any time I create a custom header renderer for a JTable it ends up not looking correct with the nimbus look and feel. The default table headers have a silvery gradient, custom renderers do not look that way. In the past I just avoided creating custom header renderers. Is it possible to copy the default look onto my new custom renderer? Basically I want to add a checkbox and have the area around it look like a normal column header, not just gray. I do know how to add the checkbox though and make it click-able. Thanks

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  • How to filter rows in JTable based on boolean valued columns?

    - by vinny
    Im trying to filter rows based on a column say c1 that contains boolean values. I want to show only rows that have 'true' in c1. I looked up the examples in http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting. The example uses a regex filter. Is there any way I can use boolean values to filter rows? Following is the code Im using (borrowed from the example) private void filter(boolean show) { RowFilter<TableModel, Object> filter = null; TableModel model = jTb.getModel(); boolean value = (Boolean) model.getValueAt(0,1); //If current expression doesn't parse, don't update. try { // I need to used 'value' to filter instead of filterText. filter =RowFilter.regexFilter(filterText, 0); } catch (java.util.regex.PatternSyntaxException e) { return; } sorter.setRowFilter(filter); } thank you.

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  • Excel Macro to copy an entire row from one sheet to another based upon a single word, within a parag

    - by jason
    Guys i'm looking for a simple excel macro that can copy a row from one sheet to another within excel based upon having a specific word in the cell. I have a sheet one, called "data" and a sheet two called "final". Here is an eaxmple of the data A B C D john mary 555.555.4939 initial reply to phone conversation Jim jack 555.555.5555 floor estimate for bathroom jerry kim 555.555.5553 initial response to phone call I'd like to copy than entire row from sheet "data" to a sheet "final" if the data in column D contains either the word "reply" or the word "response" somewhere within the paragraph. Any tips would be much obliged. thanks, J

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  • excel vba moving non-contiguous range selection to an array

    - by Russ Urquhart
    In the situation where the user select two non-contiguous column ranges i wrote the following: Dim count long Dim points variant Dim i long Set user_range = ActiveWindow.RangeSelection count = user_range.count / 2 ReDim points(1 To count, 1 To 2) For i = 1 To count MsgBox "value is" & user_range.Areas.Item(1).Value(i,1) points(i, 1) = user_range.Areas.Item(1).Value(i,1) points(i, 2) = user_range.Areas.Item(2).Value(i,1) Next i But i get an object error when i try this. Am i indexing Value wrong? This should work right? Is there an easier way to do this? Any help is greatly appreciated! Thanks, Russ

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  • Query and/or Search for SharePoint Document ID

    - by Paul-Jan
    We have the sharepoint 2010 environment with Document ID's enabled. Given (part of) a Doc ID, we want to programmatically retrieve the document(s) matching that ID. The problem seems to be that this column is rather special, in that it might need special handling. Using an SPSiteDataQuery, fetching the _dlc_DocId field as part of the viewfields works fine. However, including it as part of the where query never results in any documents being fetched. Using the Search API has gotten us nowhere at all. Has anyone pulled this off, or any suggestions on how to tackle this problem? [Update] Looks like DocumentIdProvider.GetDocumentUrlsById might be used for this purpose. If necessary, the matching SPListItem can then be found by querying on the URL. However, the MSDN documentation doesn't document the documentId arugment properly, so I'm unsure whether partial ID's are allowed and in what format.

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  • How to the view count of a question in momery?

    - by Freewind
    My website is like stackoverflow, there are many questions. I want to record how many times a question has been visited. I have a column called "view_count" in the question table to save it. When a user visited a question many times, the view_count should be increased only 1. So I have to record which user has visited which question, and I think it is too much expensive to save them in the database, because the records will be huge. So I want to keep them in the memory, and persistent the number to database every 10 minutes. I have searched about "cache" of rails, but I haven't found an example. I need an simple sample of how to do this, thanks for help~

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  • Transforming TT files in MsBuild

    - by Phill Duffy
    I need to build a DSL Solution using MsBuild and want to be able to transform the TT files, I have tried the guide on http://msdn.microsoft.com/en-us/library/ee847423(VS.100).aspx but I am getting the following errors: Failed to resolve include text for file:{0} and also Loading the include file '{0}' returned a null or empty string. There is a page on MSDN which has these issues and there resolutions : http://msdn.microsoft.com/en-us/library/bb126242(VS.100).aspx but don't really give me enough information to resolve the issue. One thing to note in the error it has the following path: Error 72 Failed to resolve include text for file:C:\source\XXXXXXXX\Dsl\GeneratedCode\Dsl\ToolboxHelper.tt. Line=-1, Column=-1 Dsl but the location of the actual TT file is C:\source\XXXXXXXX\Dsl\GeneratedCode\ToolboxHelper.tt

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  • How would I do this in SQL?

    - by bergyman
    Let's say I have the following tables: PartyRelationship EffectiveDatedAttributes PartyRelationship contains a varchar column called class. EffectiveDatedAttributes contains a foreign key to PartyRelationship called ProductAuthorization. If I run this: select unique eda.productauthorization from effectivedatedattributes eda inner join partyrelationship pr on eda.productauthorization = pr.ID where pr.class = 'com.pmc.model.bind.ProductAuthorization' it returns a list of ProductAuthorization IDs. I need to take this list of IDs and insert a new row into EffectiveDatedAttributes for every ID, containing the ID as well as some other data. How would I iterate over the returned IDs from the previous select statement in order to do this?

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  • Easiest Way To Get Started In Dot Net

    - by Avery Payne
    Ok, so the initial search in StackOverflow shows nothing related for this question. So here it goes: Let's pretend for a moment that you're just getting started in a career in computer programming. Let's say that, for whatever reason, you decide to use the .Net framework as a basis for your programming. Let's also say that you've been exposed to some programming background, but not one in .Net, so it seems foreign to you at first. And lastly, you don't have the benefit of 25 years of exposure to the Win32 API, which explains why it seems so foreign to you when you start looking at it. So the questions are: What is a comprehensive overview of what .Net is? It appears to be a combination of a runtime environment, a set of languages, a common set of libraries, and perhaps a few other things...so it's about as clear as mud. Specifically, what are the key components to .Net? What is the easiest way to understand .Net programming with regard to available APIs? Which language would best suit beginning programming out of the "stock" languages that Microsoft has to offer? (C++, C#, VB, etc.) What are some differences between .Net programming and programming in a procedural language (aka Pascal, Modula, etc.) What are some differences between .Net programming and programming in a "traditional" object-oriented language? (aka Smalltalk, Java, Python, Ruby, etc.) As I currently understand it, the CLR provides a foundation for all of the other languages to run on. What are some of the inherent limitations of the CLR? Given the enormous amount of API to cover, would it even be worth learning a .Net language (using the Microsoft APIs) given that you would not have prior exposure to Win32 programming? Let's say you write a for-profit program with .Net. Can you resell the program without running afoul of licensing issues? Let's say you write a gratis (free) program with .Net. Can you offer the program to the public under a "free" license (GPL, BSD, Artistic, etc.) without running afoul of licensing issues? Thank you in advance for your patience.

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  • ASP.NET VB.NET GridView adding anchor tag to a cell

    - by user3036965
    I have an GridView control with some data in the first cell throughout the column. Ineed to make that cell data into a hyperlink (anchor tag) like the following. <a href=""myPage.aspx?r=" & strParam & """>" & strData & "</a>" Can anyone advise on the most effective way to do this? I am using a datatable and then assigning the datatable to the gridview. Any advice would be greatly appreciated. I need to use the Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs). So I could add a hyperlink whatabout getting the parameters into the RowDataBound event is where my skills are falling down. Thank you

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  • Debugging dynamic sql + dynamic tables in MS SQL Server 2008.

    - by Hamish Grubijan
    Hi, I have a messy stored procedure which uses dynamic sql. I can debug it in runtime by adding print @sql; where @sql; is the string containing the dynamic SQL, right before I call execute (@sql);. Now, the multi-page stored procedure also creates dynamic tables and uses them in a query. I want to print those tables to the console right before I do an execute, so that I know exactly what the query is trying to do. However, the SQL Server 08 does not like that. When I try: print #temp_table; and try to compile the S.P. I get this error: The name "#temp_table" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted. Please help.

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