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i fill combobox through datasource but at form load i have to show "None" default value of combobox. how i do it??
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try setting it's Text property. Being bound you can not add Items programatically but the
Text property should work.
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Add a "None" item to the collection before you bind it to the control?
modified on Wednesday, April 28, 2010 12:00 PM
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items collection can not be modified when the datasource property is set...
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not to the comboboxitems.
Add "None" to the dataset or whatever underlying collection the combobox is bound to.
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Yes you can:
public bool AddItemToComboDataSource(ref ComboBox box, string displaymember_value, string valuemember_value)
{
bool succes = false;
try
{
DataView view = (DataView)box.DataSource;
DataRow row = view.Table.Rows[0];
row[0] = displaymember_value;
row[1] = valuemember_value;
view.Table.Rows.Add(row);
box.DataSource = view;
succes = true;
}
catch (Exception ex)
{
errormsg = ex.Message;
}
return succes;
}
Which is a little cheating, probably, but it works.
V.
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hi
i want to run an dshow an application in my project and limit it to my MDI form !
can i do it? if yes how can i?
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The answers here[^] should get you well on the way, if they work.
Good luck!
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
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hi
im new in codeproject i would begin programming a project in c# with web devlopper
if you have any document for begining and implementing a project with a web service and IIS and SQL server
finaly
thanks you very match
your friend
ABDELHAMID
from Morrocco
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Welcome,
but you couldn't have gotten more things wrong in your post if you'd tried really hard.
1) All bold
2) Non specific question
3) Irrelevant subject
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thanks you i would begin programin a n tier project
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If you are a beginner then better to buy a beginner's book or use some online learning resources or even CodeProject having lot of articles to get a basic idea.And after getting an idea try to do an application and if you face any blocking issues Let us know we'll definitely help.Try to Google it first.Best of luck.
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You shall find some articles here and on the internet that may help you out.
But nothing beats starting by reading a book.
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Hi
My application needs to be able to playback multiple videos simultaneously and each video needs to be synched by time. I need an API that allows me to get frames from videos rather than just using Play(), Stop() etc. I know that using Microsoft.DirectX.AudioVideoPlayback I can get a frame but its very slow. So does anyone know a high speed way of getting frames from video files or any documents I can read?
Thanx
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How to set Audio Input to default microphone for InProc speech recognition engine in sapi5.1(C#) ?
thanks!
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In the C++ API, you can call SetInput() [^] with null to use the default microphone. I'm hoping the .NET API works the same way.
/ravi
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Thanks my friend but I couldn't use it
I want to set the audio input for a Inproc engine and please help me ...
It's an emergency!
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How can I use "ISpTranscript" to train the speech recognition engine in C# for a word by a wav file?
I have a code that shows the use of "ISpTranscript" but it's for c++ programmers , can you convert it to C# code?
HRESULT hr = S_OK;
// Bind a stream to an existing wavefile
hr = SPBindToFile( FILENAME, SPFM_READ_ONLY, &cpStream);
// Check hr
hr = cpStream.QueryInterface(&cpTranscript);
// Check hr
PWCHAR pwszTranscript;
hr = cpTranscript->GetTranscript(&pwszTranscript);
// Check hr
SomeOne said :
You should perhaps do some reading on COM interop. All you need to do is add a reference to the COM object and you'll be able to create instances of the class and call it's methods.
thanks
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faslesabz wrote: You should perhaps do some reading on COM interop.
Then do it!
I know the language. I've read a book. - _Madmatt
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Yes I know I've searched a lot but I didn't find any thing useful,I don't know what to read!
please give a link to read and learn
thanks my friend
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If you can't find anything here[^] useful, or you don't understand, then perhaps you have chosen the wrong technology, or career.
I know the language. I've read a book. - _Madmatt
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What is this?
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Hi,
i want to write a script which can run my dot net exe at regular interval, without manual intervention. Please help me as I am very new to this kind of work. Is it possible to write such a program in dot net itself?
I am using the following:
Platform: Windows XP
framework: .net 2005,
language: C#
back end - Sql Server 2005.
Thanks in Advance for your help!!
With Regards
Puneet
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Why write a script? Windows XP has a perfectly good task scheduler. Haven't got any XP machines around anymore, but you should be able to find it somewhere in administrative tools or the control panel.
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