.net - Xaml TextBlock Width Inconsistent ?
Jan 18, 2012
Look at this simple bug :
<textblock (...) Width="0" />
Working great, the textBox appears to be 0px thin. Works with value like, 2, 3, 4...
Now that is NOT working :
<TextBlock (...) />
<TextBlock.Width>
<MultiBinding Converter="{StaticResource WidthConverter}">
[CODE]..................
Why can i set zero value to TextBox.Width in xaml and not in code behind ? By using a converter, when returing 0, the TextBlock.Width is not set to 0 but to "auto", i can read the text
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Sep 17, 2009
I need to use the xaml writer to convert in string some controls. What I get is a string like this for example
[code]...
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Nov 7, 2010
I'm using the next class to fill my listview
Imports System.Data.SqlClient
Public Class ListViewData
Public Sub FillListView(ByRef MyListView As ListView, _
[code]....
I want all the listview columns to be in auto width. I tried adding the next line of code but then only my first column fills my entering listview width. All other columns are not affected!
lvwColumn.Width = -2
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Nov 26, 2011
What I am trying to do is fill the contents of the datagridview with the cell contents. There are two ways to do this.
1) Either set the DGV width to the cell contents width, or
2) Autoadjust the width of the cells to the width of the DGV.
how to implement either of these two approaches?
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Dec 17, 2010
This Winforms app has a toolStripComboBox within a MenuStrip container that displays Culture Info languages.The toolStripComboBox's width is not expanding to accommodate the size of the string. The strings are dynamically added to the combobox from underlying code. How do I get the comboboxe's width to expand? Below is an image of the'too narrow' combobox and below that the Properties for the combobox.
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Feb 6, 2011
In VB.NET for the combo box, I have set the autocomplete mode to "SuggestAppend" and autocomplete source to "ListItems". Its working as expected. But the width of the autosuggest dropdown box is not same as that of combo box and so it looks weird.I tried changing the value dropdown width property but it changes the value of normal dropdown box (seen after clicking down arrow on combobox), and not the autosuggest dropdown box.So what code or property needs to be set to make autosuggest dropdown box the same width as that of combobox width?
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Mar 18, 2010
I have a drawing program written in VB6 that is capable of printing very thin lines to a laser printer. In VB .net, even though the pen width is set to 1, the thinnest lines are way too "thick". The equivalent line width in VB .net using a pen width of 1 is about the same as the DrawWidth = 4 in VB6. So, my question is, how can I print very thin lines to a laser printer in VB .net?
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Nov 15, 2010
how to adjust the width of the listview and also the datagridview to the width of the form.Because I want it to be able to follow the form's width and when maximized the form, the listview or the datagridview will also be maximized to the form's width.
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Aug 16, 2011
Is it possible to add a tab character into a textblock? It's a textblock in Xaml, but i'm adding the text in code, so it has to be done there. Is there any action like "Environment.NewLine", but for the "Tab" character?
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Jan 15, 2010
I can't set the FontSize of the Text in a TextBlock, since the TextBox is in a Viewbox. Why?
[Code]...
I can set the FontSizes of all of the TextBlocks but not of the TextBlock which is in the Viewbox.
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Apr 16, 2012
I have a rather large unilingual application that I have to make multilingual, meaning no resource file. I don't have the option of using the culture information but need to do it more on the fly at runtime so that the user can change languages either on startup or menu pick while in the application. I can handle that part ok.
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Mar 5, 2010
what is the common interface between textblock and textbox when it comes to dela with text stuf?
What I want to do is to create a procedure that accept a textbox or a textblock and change fonts stuff is there a common interface for them that dela with font stuff??
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Sep 13, 2011
Is there a way to animate a TextBlock's colour change?
At the moment I am basically using the enter/leave events to change the colour and I would like to a almost like a fade (but a fast fade, so .1/.2 secs) to give it a nicer visual appearance instead of being instantaneous.
ps. Due to constraints, the actual code is vb.net but I will accept c#.net answers as I can read both fine. Just learning WPF.
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Jun 18, 2010
I have a TextBlock on my main window.I would like to bind it's text to the window's title .. eg: myWindow.Title.
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Feb 7, 2011
I'd like to know if it's possible to have a Label/TextBlock that has two or more different font-sizes/styles/weights within the same label/block.
Something like this:
This is an example of a string.
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Sep 12, 2011
I have an application which was developed in vs2005 with numerous forms which use the combobox for selecting from lists of items. The usual setup is as follows:
Combo.Datsource = BusinessObject
Combo.DropdownStyle = DropDownList
Combo.AutoCompleteMode = SuggestAppend
Combo.AutoCompleteSource = ListItems
However, compiled under vs2005 when tabbing to a combo and typing a number of characters the combo would highlight the first matching item and on pressing tab, would select it and the user would move to next field.
With vs2008 the same item might be highlighted but pressing tab doesn't select the item unless its the only item matching the first character. The only way of selecting the item highlighted from the suggestappend is to press enter prior to the tab key.
I also noticed some users experiencing the same behaviour when the app was compiled with vs2005 on some PC's but not others as if it had something to do with the PC config.
Has anyone any ideas how to get around this as it can lead to errors in data capture.
Kind regards.
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Jul 8, 2010
Does anyone know if there's any particular reason that VB.NET construct syntax isn't consistent? For example:
If End If Select End Select You'd assume it would be for... end for, while... end while ... but instead we have:While.Wend For Next This has mildly frustrated me for a while, and I just got to wondering whether there was any conscious decision behind it. Or was it just an initial not-so-well-thought-out design decision that can no longer be changed because of backwards compatibility problems?
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Jul 7, 2009
How do I apply effects such as a DropShadowEffect class to a TextBlock Run element in WPF?
Think of it as a way of highlighting certain areas of text in a TextBlock where the Run element is located, but applying an individual effect to that area instead.
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Dec 27, 2010
I have a MainPage - mainpage.xaml Inside the MainPage I have a frame that hosts other pages. The first page that is auto loaded is the LogIn - LogIn.xaml
The user enters their email to login (no password required, just email to identify, its an internal app so passwords are not required or even wanted by users).
On MainPage.xaml the header should have a "Hello " TexBlock (name: ui_txbUserName). The LogIn page has a method which on submit gets the UserID (for other reasons and saves it) and the User Name.
I want to change the ui_txbUserName when the person logs in and update if he/she logs out of one account into another. I have looked at INotifyPropertyChanged and Dependency Properties and im just not sure how to go about doing this!
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Dec 26, 2010
I have a MainPage - mainpage.xamlInside the MainPage I have a frame that hosts other pages. The first page that is auto loaded is the LogIn - LogIn.xamlThe user enters their email to login (no password required, just email to identify, its an internal app so passwords are not required or even wanted by users).On MainPage.xaml the header should have a "Hello " TexBlock (name: ui_txbUserName). The LogIn page has a method which on submit gets the UserID (for other reasons and saves it) and the User Name.I want to change the ui_txbUserName when the person logs in and update if he/she logs out of UsingOfficerID - its a global variable set when a person logs in, its used all over the place in the application.
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Feb 13, 2012
What I need is some formula to calculate font size of TextBlock for its owner - Let's say I have Canvas height 100.0 then which TextBlock font size should be to fill all space of the Canvas?
P.S. The main problem is that I scroll those TextBlocks horizontally...
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Jul 22, 2010
I have a very simple StopWatch application in Silverlight. I have the following private properties in my MainPage class: _StopPressed (bool), _TimeStart, _Elapsed (string). I also have a "Start" and "Stop" button. The "Start" button calls a method called UpdateTime that constantly updates _ElapsedTime until _StopPressed is true. When I originally wrote it, UpdateTime would block the UI so I couldn't press the Stop button, so I updated my code to use System.Threading.ThreadPool.QueueUserWorkItem with my UpdateTime method so that it updates _Elapsed on a background thread. That works great at updating the value.However, if I try to set the .Text value of my TextBlock from within UpdateTime(), I get an UnauthorizedAccessException that has to do with one thread accessing the data in another thread.What do I need to do to avoid getting this exception and appropriately update the UI without blocking it?
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May 21, 2010
Why might my GetRawData declared function return a correct value when called from my VB.NET application, but return zero when called from my ASP.NET page?The code is exactly the same except for class type difference (Form / Page) and calling event handler (Form1_Load, Page_Load).
Note: In the actual code, #DLL# and #RAWDATAFILE# are both absolute filenames to my DLL and raw data file respectively.
Note: The DLL file was not created by Visual Studio.
Form1.vb
Public Class Form1
Declare Auto Function GetRawData Lib "#DLL#" (ByVal filename() As Byte, _
ByVal byteArray() As Byte, _
[code]....
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May 29, 2010
This works:
Dim zArray(5) As String
zArray = (From zS As String In zArray Select "HelloWorld").ToArray
This doesn't:Dim zArray(5) As String = (From zS As String In zArray Select "HelloWorld").ToArray
It seems inconsistent to me, though I may be missing a subtle difference instead of it being an IDE inconsistency?
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Dec 10, 2009
I have a treeview with Imagelist assigned to it. I find inconsistent behavior with the Images being displayed in treeview. When I run the app sometimes the images show up and sometimes they don't.
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Apr 17, 2011
I wrote a software for auto-generating some lines of code. However when I do a copy and paste of that code in a class after reopening it again I confront an Inconsistent Line Ending Erros.[code]...
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Apr 6, 2009
I've got a contextmenustrip with a couple levels of dropdowns (submenu items). Let's say I right-click the form and show the "main" set of items, one of which is "Food". If I move the mouse over Food (not click it), a dropdown (submenu) for Food should open, which it does. But then, say, one of the food items is "Fruit". When I move the mouse over "Fruit", the Fruit submenu should open automatically - but it does not always - sometimes it does, but sometimes I have to click it to open it. Furthermore, once "Fruit" has been clicked once to open, any other dropdown items (let's say we had "Veggies" and "Meat") will automatically open as I expect; and then "Fruit" will behave as expected also.
Any ideas on how to correct this inconsistent behavior? (i.e. all sets of dropdowns associated with a contextmenuitem should open when the mouse is moved over it, a click should not be required)
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Jan 13, 2010
OVERVIEW:I am currently having an issue loading a large number of rows into Excel. I say large because the attached code in fact correctly inserts 50 rows into an Excel worksheet, however, as the number of rows increases to no more than500 rows the data is not inserted into the worksheet. No error is thrown by .net and the .xls filesize actually shows an increase in size, however, when the file is opened there are no rows in the spreadsheet..... Then, when the .xls file is closed the filesize is once again reduced.
Again, the code works for a small number of rows. Are there any known bugs with the OleDB driver for Excel?ADDITIONAL THOUGHTS:I have tried inserting rows to both Excel 2003 and 2007, same issue.I have tried closing the connection after each insert.... performance if horrible and it does not fix the problem.I have wrapped the ExecuteNonQuery in a transaction.... no go....
[code]...
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Mar 24, 2012
I have one data grid which contains a column which contains long string values. When I edit it, the text box which appears is very small. I want to increase the length of text box.
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Dec 23, 2010
I'm trying to implement parallel computing using .NET 4 on an asp.net website housed on a clustered server consisting of 6-8 dual core servers. My original script contains two nested For...Next loops iterating through a range of values in a grid of x by y.
For each point in the grid (x,y), we should perform a computationally intensive subroutine called MakePartsMatrix which accesses a SQL server database with dataviews and manipulating the local variable "unfilled" which is passed in ByRef.
Without the parallel implementation, the nested for loops work fine except its slow -- taking about 60 seconds to run.
When I parallelize the outer For loop, the script is about 50% faster, completing its calculations in 20-30 seconds which is great. However, I have noticed that the parallelization causes random parts of the grid to be either completely skipped (eg, grid (1,5) is never evaluated by the MakePartsMatrix), or some points in the grid (eg, x=10 & y=5) to be evaluated multiple times, resulting in duplicate work.
When I parallelized only the inner For Loop, the script execution time also improves by 50%, but now the last row (y-1) in the grid is skipped entirely and the results in "unfilled" are completely wrong.
When I comment out the "MakePartsMatrix" subroutine, the parallellization (either inner or outer For loops) does appear to visit every point of the grid (x,y) once, and only once.
Dim ConcurrentListofResults As ConcurrentQueue(Of FindBestResults)
ConcurrentListofResults = New ConcurrentQueue(Of FindBestResults)
Dim FBSResultsItem As FindBestResults
[Code].....
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