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  • Binding IsReadOnly using IValueConverter

    - by mastur cheef
    Maybe I'm misunderstanding how to use an IValueConverter or data binding (which is likely), but I am currently trying to set the IsReadOnly property of a DataGridTextColumn depending on the value of a string. Here is the XAML: <DataGridTextColumn Binding="{Binding Path=GroupDescription}" Header="Name" IsReadOnly="{Binding Current, Converter={StaticResource currentConverter}}"/> And here is my converter: public class CurrentConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { string s = value as string; if (s == "Current") { return false; } else { return true; } } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotSupportedException(); } } Currently, the column is always editable, the converter seems to do nothing. Does anyone have some thoughts as to why this is happening?

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  • Right clicking on QHeaderView inside of QTreeView

    - by taynaron
    I've written a descendant of QTreeView with multiple columns. I want to create a popup menu that appears whe nthe user right-clicks over the column headers. I have tried catching signals from QTreeView for this, but QTreeView doesn't seem to emit signals on the headers. QTreeView.header() does. I therefore believe I must either: 1: connect one of QHeaderView's signals to a popup function - I have been unable to find a signal that is triggered on a single right click - I have tried sectionClicked, sectionHandleDoubleClicked, sectionDoubleClicked, sectionPressed (not surprised the double click functions didn't catch a single right click - but they do catch a double right click) self.header().sectionClicked.connect(self.headerMenu) self.header().sectionHandleDoubleClicked.connect(self.headerMenu) self.header().sectionDoubleClicked.connect(self.headerMenu) self.header().sectionPressed.connect(self.headerMenu) or, 2: write a descendant of QHeaderView with my own MousePressEvent function, and use that for my headers. I have so far been unsuccessful in connecting the new header class to the QTreeView descendant. I keep getting a Segmentation Fault on runtime, with no more explanation. #in DiceView's init, where DiceHeaders is the QHeaderView descendant self.setHeader(DiceHeaders()) Any ideas?

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  • How do I create an empty array/matrix in NumPy?

    - by Ben
    I'm sure I must be being very dumb, but I can't figure out how to use an array or matrix in the way that I would normally use a list. I.e., I want to create an empty array (or matrix) and then add one column (or row) to it at a time. At the moment the only way I can find to do this is like: mat = None for col in columns: if mat is None: mat = col else: mat = hstack((mat, col)) Whereas if it were a list, I'd do something like this: list = [] for item in data: list.append(item) Is there a way to use that kind of notation for NumPy arrays or matrices? (Or a better way -- I'm still pretty new to python!)

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  • T-SQL - Date rounding and normalization

    - by arun prakash
    Hi: I have a stored procedure that rounds a column with dates in (yyyy:mm:dd hh:mM:ss) to the nearest 10 minute handle (yyyy:mm:dd hh:mM) 20100303 09:46:3000 ------ 20100303 09:50 but i want to chage it to round it off to the nearest 15 minute handle: 20100303 09:46:3000 ------20100303 09:45 here is my code : IF OBJECT_ID(N'[dbo].[SPNormalizeAddWhen]') IS NOT NULL DROP PROCEDURE [dbo].[SPNormalizeAddWhen] GO CREATE PROCEDURE [dbo].[SPNormalizeAddWhen] As declare @colname nvarchar(20) set @colname='Normalized Add_When' if not exists (select * from syscolumns where id=object_id('Risk') and name=@colname) exec('alter table Risk add [' + @colname + '] datetime') declare @sql nvarchar(500) set @sql='update Risk set [' + @colname + ']=cast(DATEPART(yyyy,[add when]) as nvarchar(4)) + ''-'' + cast(DATEPART(mm,[add when]) as nvarchar(2)) + ''-'' + cast(DATEPART(dd,[add when]) as nvarchar(2)) + '' '' + cast(DATEPART(Hh,[add when]) as nvarchar(2)) + '':'' + cast(round(DATEPART(Mi,[add when]),-1) as nvarchar(2)) ' print @sql exec(@sql) GO

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  • Sunspot / Solr full text search - how to index Rails associations

    - by Sam
    Is it possible to index through an association with Sunspot? For example, if a Customer has_many Contacts, I want a 'searchable' block on my Customer model that indexes the Contact#first_name and Contact#last_name columns for use in searches on Customer. acts_as_solr has an :include option for this. I've simply been combining the associated column names into a text field on Customer like shown below, but this doesn't seem very flexible. searchable do text :organization_name, :default_boost => 2 text :billing_address1, :default_boost => 2 text :contact_names do contacts.map { |contact| contact.to_s } end Any suggestions?

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  • Add Today's Date to SharePoint Master Page

    - by soniiic
    Surely there must be a simple way of putting a simple code block into a master page :( I've tried using the obvious <%= "Hello, World!" %> syntax but code blocks aren't allowed. Then tried a site column, but don't know how to use them. Then tried web zones but master pages can't use them. Tried putting a web part (which are super difficult to make and deploy btw) into the page layout, but it just doesn't render :/ All I want is something nice and simple at the top of my site which shows today's date and the format I want to use is DateTime.Today.ToString("ddd, d MMMM yyyy") (Otherwise I'm resorting to javascript document.write!) Thanks all,

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  • What is the correct syntax for using HTML builder with mixed content in Groovy 1.7?

    - by stian
    On the Groovy example page there is an example of how to use Groovy HTML builder with mixed content: p [ "This is some", b"mixed", "text. For more see the", ahref:'http://groovy.codehaus.org' ["Groovy"], "project" ] This is however not working for me, I get an error message like: expecting ']', found 'mixed' @ line 33, column 23. b"mixed", ^ 1 error The Groovy example page states that: [Note: the syntax in some of these examples is slightly out-dated. See chapter 8 of GINA in the mean-time until these examples are updated.] My suspicion therefore is that the syntax of the HTML builder has changed, however I don't have the book so I cannot check and I cannot seem to find any relevant example of this working online. Does anyone know how the syntax is supposed to be in Groovy 1.7 and have got this working?

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  • HBase schema help

    - by Jody Powlette
    Coming from a SQL Server background, I'm a newbie with regard to HBase, but the technology looks to be a good fit for what we're doing and the cost is definitely right! I need to maintain a list of log entries which normally I would create in an RDBS as: create table Log ( UserID int, SiteID int, Page varchar(50), Date smalldatetime ) where one user may have 0 or 1000 rows in this simple table. Typical queries would be to find all the rows for one user or all the rows for one user on one site. How does this translate into a "map" in HBase where there is no "row key" AND the same (SiteID,Page) may appear many times. My first thought is that UserID is a row key, but I still don't understand "column families" and the other terminology well enough to understand how to setup the table to hold this data where the one UserID can have many (SiteID,Page,Date) "rows". Any direction is appreciated!

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  • Add a thousands separator to a total with Javascript or jQuery?

    - by Matt
    I have a function that sums a column of data in an html table. It does so admirably only I would like to have it put the commas in there that are needed to separate the thousands. Initially, you'll note, there are commas in the numbers being added. So that the function will add them, they are removed. How do I add the commas back in there? <script type="text/javascript"> function sumOfColumns(tableID, columnIndex, hasHeader) { var tot = 0; $("#" + tableID + " tr" + (hasHeader ? ":gt(0)" : "")) .children("td:nth-child(" + columnIndex + ")") .each(function() { tot += parseInt($(this).html().replace(',', '')); }); return "Total Pounds Entered : " + tot; } </script>

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  • Excel VBA: importing CSV with dates as dd/mm/yyyy

    - by Michael Smith
    ello I understand this is a fairly common problem, but I'm yet to find a reliable solution. I have data in a csv file with the first column formatted dd/mm/yyyy. When I open it with Workbooks.OpenText it defaults to mm/dd/yyyy until it figures out that what it thinks is the month exceeds 12, then reverts to dd/mm/yyyy. This is my test code, which tries to force it as xlDMYFormat, and I've also tried the text format. I understand this problem only applies to *.csv files, not *.txt, but that isn't an acceptable solution. Option Base 1 Sub TestImport() Filename = "test.csv" Dim ColumnArray(1 To 1, 1 To 2) ColumnsDesired = Array(1) DataTypeArray = Array(xlDMYFormat) ' populate the array for fieldinfo For x = LBound(ColumnsDesired) To UBound(ColumnsDesired) ColumnArray(x, 1) = ColumnsDesired(x) ColumnArray(x, 2) = DataTypeArray(x) Next x Workbooks.OpenText Filename:=Filename, DataType:=xlDelimited, Comma:=True, FieldInfo:=ColumnArray End Sub test.csv contains: Date 11/03/2010 12/03/2010 13/03/2010 14/03/2010 15/03/2010 16/03/2010 17/03/2010 Thanks Michael

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  • No_data_found exception is propagating to outer block also?

    - by Vineet
    In my code i am entering the salary which is not available in employees table and then again inserting duplicate employee_id in primary key column of employee table in exception block where i am handling no data found exception but i do not why No data found exception in the end also? OUTPUT coming: Enter some other sal ORA-01400: cannot insert NULL into ("SCOTT"."EMPLOYEES"."LAST_NAME") ORA-01403: no data found --This should not come according to logic This is the code: DECLARE v_sal number:=&p_sal; v_num number; BEGIN BEGIN select salary INTO v_num from employees where salary=v_sal; EXCEPTION WHEN no_data_found THEN DBMS_OUTPUT.PUT_LINE('Enter some other sal'); INSERT INTO employees (employee_id)values(100) ; END; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE(sqlerrm); END;

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  • "Mem Usage" higher than "VM Size" in WinXP Task Manager

    - by Frederick
    In my Windows XP Task Manager, some processes display a higher value in the Mem Usage column than the VMSize. My Firefox instance, for example shows 111544 K as mem usage and 100576 K as VMSize. According to the help file of Task Manager Mem Usage is the working set of the process and VMSize is the committed memory in the Virtual address space. My question is, if the number of committed pages for a process is A and the number of pages in physical memory for the same process is B, shouldn't it always be B = A? Isn't the number of pages in physical memory per process a subset of the committed pages? Or is this something to do with sharing of memory among processes? Please explain. (Perhaps my definition of 'Working Set' is off the mark). Thanks.

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  • Mysql CASE - WHEN - THEN - returning wrong data type (blob)

    - by Jack
    Hi there. Im creating customizable product attributes in a web store - each attribute can have different type of data, each data type is stored in a separate column using corresponding mysql datatype. I Have a query like: SELECT products.id AS id, products.sku AS sku, products.name AS name, products.url_key AS url_key, attributes.name AS attribute, CASE WHEN `attribute_types`.`type` = 'text' THEN product_attribute_values.value_text WHEN `attribute_types`.`type` = 'float' THEN product_attribute_values.value_float WHEN `attribute_types`.`type` = 'price' THEN product_attribute_values.value_float WHEN `attribute_types`.`type` = 'integer' THEN product_attribute_values.value_integer WHEN `attribute_types`.`type` = 'multiple' THEN product_attribute_values.value_text WHEN `attribute_types`.`type` = 'dropdown' THEN product_attribute_values.value_text WHEN `attribute_types`.`type` = 'date' THEN product_attribute_values.value_date WHEN `attribute_types`.`type` = 'textarea' THEN product_attribute_values.value_textarea END as value from (...) Now, the problem is that when attribute_types.type equals to ?some-type? i want it to return a value as it's stored in product_attribute_values table. Currently I get BLOb every time. Should I use type-casting or there's some behind-the-scene magic that I dont know about, OR maybe there's some better alternative ?

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  • Mobile iPhone - Multiple buttons in a row

    - by Thomas
    Hello all: I'm an iPhone developer, but new to web development. I've done some basic HTML websites and made one in iWeb as well. I'm trying to branch out to actual mobile development now, so I checked out Dashcode. Anyway, I'm trying to put a Call Button, Mail Button, and Map Button in horizontal alignment. I realize that I can add a Column Layout and have two buttons in a row, but that's the most I've gotten. Any ideas? Thanks! Thomas

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  • How can I update multiple columns with a Replace in SQL server?

    - by Kettenbach
    How do I update different columns and rows across a table? I want to do something similiar to replace a string in SQL server I want to do this but the value exists in multiple columns of the same type. The values are foreign keys varchars to an employee table. Each column represents a task, so the same employee may be assigned to several tasks in a record and those tasks will vary between records. How can I do this effectively? Basically something of a replace all accross varying columns throughout a table. Thanks for any help or advice. Cheers, ~ck in San Diego

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  • Using Java to retrieve the CPU Usage for Window's Processes

    - by stjowa
    Hello all, I am looking for a Java solution to finding the CPU usage for a running process in Windows. After looking around the web, there seems to be little information on a solution in Java. Keep in mind, I am not looking to find the CPU usage for the JVM, but any process running in Windows at the time. I am able to retrieve the memory usage in Java by using the exec("tasklist.exe ... ") to retrieve and parse process information. Although there is an aggregate CPU cycle timer for each process, I do not see a CPU usage column. Any help would be greatly appreciated. Also, if possible, I would like to stay away from C libraries; however, if there is no other alternative, a solution by that means would be appropriate. Thanks a lot, Steve

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  • Convert a user's search string into a MS SQL `Full-Text Query` Search Phrase

    - by Atomiton
    I've search for answers for this and I can't seem to find an answer to what should be somewhat simple. This is related to another question I asked, but it's different. What's the best way to take a user's search phrase and throw it into a CONTAINSTABLE(table, column, @phrase, topN ) phrase? Say, for example the user inputs: Books by "Dr. Seuss" What's the best way to turn that into something that will return results in my ContainsTAble() phrase? I was previously parsing the search phrase and writing something like ISABOUT("Books" WEIGHT(1.0), "by" WEIGHT(0.9), "Dr. Seuss" WEIGHT(0.8)) as my @phrase but ISABOUT seems to be returning odd results... especially when one word searches are entered. Any Ideas?

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  • I've got a ComboBox that's giving me grief in WPF using the MVVM pattern

    - by Mike
    Here's my code: <ComboBox Grid.Column="1" Grid.Row="9" ItemsSource="{Binding Path=PriorityEntries}" SelectedItem="{Binding Path=Priority,Mode=TwoWay}"/> The comboBox is bound properly with PriorityEntries, and when i change the value of the comboBox the "set" of the bound property(Priority) is called setting it to what it needs to be. However, when i close the UserControl that this combobox resides, it calls the set property again with a value of null and then sets what the selectedItem was to null. Why is the comboBox being bound again when I close the usercontrol. I tried setting the mode to OneTime, but that won't reflect any changes...

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  • SQL Server Bulk Insert failing when called from .NET SqlCommand

    - by Nick Wright
    I have a stored procedure which does bulk insert on a SQL server 2005 database. When I call this stored procedure from some SQL (passing in the name of a local format file and data file) it works fine. Every time. However, when this same stored procedure gets called from C# .NET 3.5 code using SqlCommand.ExecuteNonQuery it works intermittently. When it fails a SqlException is generated stating "Cannot bulk load. Invalid column number in the format file "c:\bulkinsert\MyFile.fmt" I don't think this error message is correct. Has anyone experienced similar problems with calling bulk insert from code? Thanks.

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  • Problem with the DataTable and DataGridView objects

    - by Karol
    Hello everyone, I have the following problem In my aplication I doing some calculations and after it put them into DataTable object (6 columns, data in the latest one is most important). To view the results I put them into DataGridView object and there is my problem. Depending on the data contained in the last column I want to mark the cells on the appropriate colors. And I don't know if I should do this on the DataGridView object because this is user interfaces? Where I can do this? DataTable object doesn't have a style properties? Thanks a lot...

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  • RubyQt Crashing on QTableWidget

    - by gja
    I'm getting some weirdness with QtRuby when using a TableWidget. The table widget loads, but when you click on the elements in the row, the app segfaults and crashes. require 'Qt4' class SimpleModel < Qt::AbstractTableModel def rowCount(parent) return 1 end def columnCount(parent) return 1 end def data(index, role=Qt::DisplayRole) return Qt::Variant.new("Really Long String") if index.row == 0 and index.column == 0 and role == Qt::DisplayRole return Qt::Variant.new end end Qt::Application.new(ARGV) do Qt::TableWidget.new(1, 1) do set_model SimpleModel.new show end exec end The backtrace seems to imply that it is bombing in mousePressEvent #6 0x01624643 in QAbstractItemView::pressed(QModelIndex const&) () from /usr/lib/libQtGui.so.4 #7 0x016306f5 in QAbstractItemView::mousePressEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4 If I override mousePressEvent and mouseMoveEvent, these kinds of crashes no longer happen. Am I doing something wrong over here, or can I chalk this up as a bug in QtRuby? I'm on fedora11, with the following packages installed: QtRuby-4.4.0-1.fc11.i586 ruby-1.8.6.369-1.fc11.i586 These crashes also happen when running the script on Windows.

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  • Splitting up/merging windows in WPF

    - by drasto
    I'm new to WPF but I need to implement following functionality: I have a window that contains one Grid (might be changed to stack panel or something else). In that Grid I have 2 columns, each of them contains another Grid. Lets call them gridFirst and gridSecond. There is also GridSplitter in first column allowing to resize the columns. I want to provide a button that will allow to separate gridFirst from this window and display it "as it is" in another window. How do I do that? It would be nice if the new window had a same menu as the original window without me having to copy-paste (that not a good coding practise) all its code to the new window. Thanks for answers

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  • NHibernate: Many-to-many relationship with field in the relationship table

    - by Fossmo
    I'm scratching my head; I have a Car table and a Customer table that have a many-to-many relationship. In this relationship table I want to add a column that can tell me what kind of relationship this is; is the customer testdriving the car, do he want to buy the car, ect. What I want to end up with is a class Car object that holds a collection of Customers and the relationship information. I might be looking at this the wrong way so feel free to push me in the right direction.

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  • Symfony app - how to add calculated fields to Propel objects?

    - by Thomas Kohl
    What is the best way of working with calculated fields of Propel objects? Say I have an object "Customer" that has a corresponding table "customers" and each column corresponds to an attribute of my object. What I would like to do is: add a calculated attribute "Number of completed orders" to my object when using it on View A but not on Views B and C. The calculated attribute is a COUNT() of "Order" objects linked to my "Customer" object via ID. What I can do now is to first select all Customer objects, then iteratively count Orders for all of them, but I'd think doing it in a single query would improve performance. But I cannot properly "hydrate" my Propel object since it does not contain the definition of the calculated field(s). How would you approach it?

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  • winforms - gridview cell timespan edit problem

    - by Sharique
    I'm following this question for formatting timespan value in the gridview. Format TimeSpan in DataGridView column I'm diaplying only minutes value in grid as follows DataGridViewColumn idleTimeColumn = myGridView.Columns["IdleTime"]; idleTimeColumn.DefaultCellStyle.FormatProvider = new TimeSpanFormatter(); idleTimeColumn.DefaultCellStyle.Format = "m"; This cell is editable, so when I enter 5 (that mean 5 min) in the cell, then it should take it minute, but it take it as day value (ie, 5.00:00:00). I tried different values for format (mm,%m) but all these gives the same output.

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