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I have created a class library in which I have created customised textbox columnstyle.
When I click on the cell of this datagrid,actual text box is made visible(normaly text is painted in the cell using drawstring method of in overriden paint method.) & we can edit the text in it. but this text box is not handling arrow keys! The focus is lost from the text box if we click arrow keys. because data grid was handling these events. I checked these events in datagrids overriden method 'IsInpunkey' method & tried to return true whih will avoid further processing of key by base class method but it didn;t worked. I also tried to handle this through textbox's IsInputKey method, but it failed there also.
Can any body tell me why is this hapening & how can I make arrow keys work in my text box.
Thanks.
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I have been attempting to find my own method for controlling the "boundaries" of child windows within the main parent. So far I have come up with:
Private Sub childform1_LocationChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.LocationChanged<br />
If childform1.Location.X < 144 Then<br />
' childform1.Visible = False<br />
'cannot use the visible= False as this cause the application to crash.<br />
childform1.Location = New System.Drawing.Point(144, childform1.Location.Y)<br />
'childform1.Visible = True<br />
End If<br />
If childform1.Location.X > 753 Then<br />
'childform1.Visible = False<br />
childform1.Location = New System.Drawing.Point(144, childform1.Location.Y)<br />
'childform1.Visible = True<br />
End If<br />
If childform1.Location.Y > 442 Then<br />
'childform1.Visible = False<br />
childform1.Location = New System.Drawing.Point(childform1.Location.X, 0)<br />
'childform1.Visible = True<br />
End If<br />
'for the main form<br />
F1.AutoScroll = False<br />
'F1.Refresh()<br />
End Sub
The above code works fine, does what I need it to, but there is a large amount of flickering going on when the form is moved. I tried to prevent this by making the form invisible when the relocation was going on but the application crashed as a result.
Does anyone have an idea I might try to prevent the flickering?
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How Can I Create Query Builder Using VB By DAO Connection
S.venkatesh
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hello,
i start vb.net programming now.
i dont any about coding,link database with access database and link between forms.please help me.
i need them.
thanks
best regaurd
k.pakzamir
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I've recently a connection problem between vb.net and sql server and a guy have give a link to me!
I hope it's what you want and search !
ConnectionSting : http://www.connectionstrings.com
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I've recently a connection problem between vb.net and sql server and a guy have give a link to me!
I hope it's what you want and search !
ConnectionSting : http://www.connectionstrings.com
Excuse, but I think i've post the same message with a anonymous state
SeLoRBIS
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hi friends,
Third time i am asking about dataset when i am having table with more than
five lacs of record i want to show all record to user. that time dataset stuck(hanged) what to do?
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I have created a package using VB .Net running under the 1.1 Framework
It has a series of buttons along the bottom of the screen.
When installed on PCs in the UK it works fine.
When installed on PCs in Germany, the users cannot see the buttons ( except for the one on the far left ). The buttons must exist, because they still function when accessed via the Tab + Enter keys.
Can anyone shed light on why they cannot see them, and how to solve the problem ?
A typical machine in th UK is Panasonic CF-29
The machine in Germany is IBM Net Vista
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hi...
I'm manipulating on the Crytal Report. The problem is that I have one printer having many TRAYs on the printer, and I want to choose the default TRAYs when user prints the report. Besides, it doesn't allow users to select the printer. Tell me how to do that, please. Thanks
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Hi everybody,
I want to ask a question about MshflexGrid Control ,
I have a grid in myProject that is writing with VB6 ,I update this control with timer control at 2 second from DataBase.
I want to control Grid 's Click event and When I click a Row for example row3 ıt catch this event ,but I try and try then It can create wrong result that catch LastRow of MyMshFlexGrid ,For example ,I click 3.row It display SelectedRow=39 (LastRow of myGrid)
How can I solve this problem?
I hope ,You could understand !
Thanks for your interest
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Hi
Nice Day
Use This To Get The Row Ur Select By Click
GridName.get_TextMatrix(GridName.Row,<column u="" want="" from="" this="" row="">)
Waiting ur Reply
Best Regrad
Scorpion
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Hi, I am facing some proplem to develop an application in VB6.0. My database is SQL Server. The main problem is I need to insert the data in a particular table using SQL DMO Objecs.
I have One database called dexpro. in this I had a table called Employee.
In another database called Mydata. in this I had a table called Employee.
So when I enter a Row in a Dexpro's Employee table that row need to check
in Mydata's Employees table. When That particular row is not exist in Mydata's Employees table, then that particular row need to add Mydata's table.
when I delete a row from Dexpro's Employee table that Particular row need to delete from Mydata's Employees table.
This is nothing but called Replication. This operations need to perform through using SQL DMO Objects.
Please send solution to me
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hello everybody,
anyone of you can tell me how to check server hard disk space using
vb.net. Is it possible or not? If yes then explain me.
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Yes, it's possible. But how you go about it depends entirely upon the type of werver that you're talking about. Unix/Linux, NetWare, Windows, ...???
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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i am talking about window o/s
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Hi
I have this problem of writing to a text file everyday at a particular time say 10 AM in the morning automatically.I am being told that using windows service is a solution.I however dont know how to go about doing this
faraz
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File/New/Project/VB.NET/Windows Service. That should be a good start.
Google[^] seems to have a lot of info, as well.
Christian Graus - Microsoft MVP - C++
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Another option would be to create an application that doesn't put up a user interface, either a Windows Forms app or Console app to do the same thing. Be sure that it quits itself after it does what it needs to. Just setup a job to run the application using the Scheduled Tasks control panel. That way, your app doesn't need to be running 24 hours a day if it's only going to do work for a couple of seconds a day.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I have the following event handler for a rich text box.
Protected Sub Link_Clicked(ByVal sender As Object, ByVal e As System.Windows.Forms.LinkClickedEventArgs) Handles rtbDescription.LinkClicked
Try
System.Diagnostics.Process.Start(e.LinkText)
Catch ex As Exception
Debug.WriteLine(ex.Message & " : " & e.LinkText)
End Try
End Sub
When I click a link in the rich text box nothing happens an I receive the following line in my output.
The system cannot find the path specified : http://www.cnn.com/rssclick/2005/TECH/internet/07/28/disappearing.apple.ap/index.html?section=cnn_tech
Anyone have any ideas?
MSDN states that this handler should fire the default browser.
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Try it like this:
Dim proc As New Process()
With proc
.StartInfo.FileName = e.LinkText
.StartInfo.UseShellExecute = True
.Start()
End With
I would appear that Process is not using Shell Execute for some reason, so, force it to do so.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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I have modified my code as you suggested, yet I get the same response.
The system cannot find the path specified : http://www.cnn.com/rssclick/2005/WORLD/africa/07/28/niger.nomads.email.ap/index.html?section=cnn_tech
Protected Sub Link_Clicked(ByVal sender As Object, ByVal e As System.Windows.Forms.LinkClickedEventArgs) Handles rtbDescription.LinkClicked
Try
Dim proc As New Process()
With proc
.StartInfo.FileName = e.LinkText
.StartInfo.UseShellExecute = True
.Start()
End With
'System.Diagnostics.Process.Start(e.LinkText.ToString)
Catch ex As Exception
Debug.WriteLine(ex.Message & " : " & e.LinkText)
End Try
End Sub
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I have no idea what's going on. That's very same code works perfectly for me. Perhaps this registry key is screwed up? -> HKEY_CLASSES_ROOT\http. You might want to check to see if anything is registered under http\Shell\Open\Command.
RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome
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This may seem like a wierd question. I'm trying to prevent unhandled exceptions that originate from an embedded user control, bubble up to the main form which contains the user control and crashing the app. The catch is, I don't want to have to catch the unhandled exception and handle it.
Sorry if I've confused anyone.
Basically I have a main form, which contains a user control that I've written. I was wondering if there was a way from preventing unhandled exceptions that the user control creates, from stepping up a level and crashing the main form (app). All without specifically catching the exception. Basically I'm asking if there is a way to prevent unhandled exceptions from bubbling up to the main form.
Is this possible? Or will I have to catch every possible exception to prevent it from bubbling up a level and crashing the app.
Thanks.
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It is possible, you just handle your exceptions within the user control. Since you don't want to "specifically catch" the exception. You can use a generic try catch or an empty catch (not the best practice). It also depends if you are going to do anything with the exception.
Try<br />
'some code<br />
Catch<br />
'leave empty<br />
End Try
OR
Try
'some code
Catch ex As Exception
'catch all exceptions
'do something like write to an error log file
End Try
You can try this, but I recommend that you should probably do something with the exception. Otherwise your user won't know what is going on 
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If I got it correctly there are several ways to accomplish it. Some are stated in the reply before mine.
I think the point is if you have specific code that can generate exceptions or not. In the first case you should jusy but it inside a try/catch/end try structure to "trap" exception and eventually discard them.
Another way should be (I'm not sure about it but it should work):
Public sub Main
Try
MainForm.Showdialog
catch ex as exception
end try
end sub
or a dirty (and old) way is to put ON ERROR RESUME NEXT wherether it may be needed.
My suggestion is work on the control code and not on the application. For several reasons:
1) It'll be ready for each and every application
2) You don't need to remember it/rehandle it everytime
3) You can always trap exception even if you sub-thread it.
4) It's more clean code style.
Hope it helps.
Briga
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