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what i have done is I binded DatatTable to binding Source and then binded that Source to that Grid .
No i Have written a method which will get List of all the files for slected directory and store it in the DatatTable which is binded to the source .
This method i have assigned to the thread ..
Now the datattable is getting updated but the Grid Is not getting refreshed ???
That is the problem
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My experience with data binding is limited.
If the control is not tracking your changing datasource, the one way I know how to fix it is by setting the datasource to null, then assign the real one again. And maybe, never tried it, Control.Invalidate() also works.
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Luc, isn't it a simpler problem? If he is indeed using separate threads, then he can't update the grid anyway without invoking the GUI thread - can he?
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Yeah, one shouldn't touch the data binding properties from another thread, unless through Invoke. Not sure that's the problem, it could well be. This whole thread is unclear to me.
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Below is the code written in row editing event of data gridview(in assumption that row editing can only be done if some control like textbox is there)
(TextBox)(GridView2.Rows[0].Cells [2]) = "a";
But is this syntax of object conversion correct?It is giving error as system cannot convert type string to system.web.ui.webcontrols
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yes, because "a" is a string, not a textbox.
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Try
((TextBox)(GridView2.Rows[0].Cells [2])).Text = "a";
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Hi all,
Through IHTMLElementCollection we can get all the IHTMLElement.
I want to find out all the HTMLInputButtonElement that is in the current DOM.
How to navigate (frames,iframes,divs,tables) and find out the HTMLInputButtonElement
Is there any common algorithm.
Thanks in advance
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I have created setup in C#.net using C# setup project.
I am Accepting servername,username,password in textbox.
Textbox has been added in setup project by adding textbox dialog in user interface..
but how to Accept Password in ** format during installation.??
Thanks in advance.
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Try:
Password Textbox[^]
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Thanks dear.
For your valuable suggetion.
But for installation time textbox there is no such property exist.
This textbox is textbox dialog box which is provided in .net in set up project.
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Then what you have to do is provide a Custom Action[^] which should allow your own dialog.
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Apart from this you will need to use the Orca [^]utility to change the textual style of textbox.
Manas Bhardwaj
Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.
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Hi all,
I am developing a winforms application and, in order to store some data on the client side I am using a dataset. My problem is that for a particular table (nothing different in settings compared to other datatables in my dataset), I get an exception when I try to insert a new Row.
I will not paste any code in here as I don't think that it will help anyone, but what I do is:
* create new row object using: MyDataSet.MyDatatableRow row = datasetInstance.MyDataTable.NewMyDataTableRow();
* I populate the columns I need
* I try to add the row to the datatable: datasetInstance.MyDataTable.AddMyDataTableRow(row);
At the very last step (add to datatable), I get an exception saying: "Cannot perform '=' operation on System.Char and System.Boolean."
I tried to see if I am doing something wrong while setting the column value, but everything looks fine... also I already waste lots of time on google trying to find an answer, but no success.
Can anyone explain to me why this exeption occurs? Any idea what could be wrong, what should I try in order to fix this?
Thank you in advance!
Andrei
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Can we see the code ?
Vuyiswa Maseko,
Few companies that installed computers to reduce the employment of clerks have realized their expectations.... They now need more and more expensive clerks even though they call them "Developers" or "Programmers."
C#/VB.NET/ASP.NET/SQL7/2000/2005/2008
http://www.vuyiswamaseko.com
vuyiswa@its.co.za
http://www.itsabacus.co.za/itsabacus/
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To be honest, I don't see how this will help. Besides the code (which is quite long as there is business logic), I should paste also the datatable structure. Anyway, I have similar logic with many other datatables in the dataset, and I didn't get this exception so far. If you think that this is related to the way I populate the data, I will try to prepare the copy of my code and maybe a description of the datatable structure in case you think it will help.
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Well most likely, you are trying to store a boolean value in a field that takes char. Without code or a crystal ball I don't see how we can offer any more help. Just post the relavent bits (in <pre></pre> tags). Stripping out some of the chaff and validation/business logic will not only make it readable, but you might see where the problem lies.
DaveBTW, in software, hope and pray is not a viable strategy. (Luc Pattyn) Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia) Why are you using VB6? Do you hate yourself? (Christian Graus)
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Someone has to check the code, if you don't, and you don't publish any, who will?
here is a twin suggestion:
- exceptions most often contain file name, line number and method name information; to see it all, make sure you output Exception.ToString() and not just Exception.Message
- your IDE is capable of showing line numbers in all editor windows; make sure to switch that on. For Visual Studio, see here[^].
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... thanks for the tips I use them for a few years now + log4net to print exception. However, it's the first time when I get this exception - EVER! As soon as I will get 10-15 minutes free I will strip the code of business logic and post it here.
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so you know what line is failing
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Yes, as I initially mention, the exception occurs when the AddMyDataTableRow method is called. When I say AddMyDataTableRow I mean the datatable specific method that is generated for every datatable to add new row: AddxxxRow
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OK, problem fixed. By some stupid mistake a field was defined as char in the datatable, but it was used as boolean in an expression. After fixing this issue everything worked fine.
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how can i make the the font of text in messagbox as i want?
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