In vb it is possible to use handles to extend the use of a function/event.
I tried doing the same thing in c# and it did not work.
Here is my code.
protected void UpdateTextBoxes_Textchange
{
}
But it does not work... Can anybody help?
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Hi,
You have to add the handles of the TextChanged event in Form_Load, like this:
private void Form1_Load(object sender, EventArgs e)
{
textBox1.TextChanged += new EventHandler(UpdateTextBox
textBox2.TextChanged += new EventHandler(UpdateTextBox
}
private void UpdateTextBoxes_Textchange
{
textBox3.Text = ((TextBox)sender).Text;
}
In C# the syntax is slightly different - the += operator is overloaded to 'add' an event handler (a delegate) to an event.
In your case, somewhere in your form's constructor after InitialiseComponent is called you could use code similar to as follows:
TextBox1.TextChanged += UpdateTextBoxes_Textchange
TextBox2.TextChanged += UpdateTextBoxes_Textchange
You'll still need your Textchanged method to be implemented somewhere in the class:
protected void UpdateTextBoxes_Textchange
{
// Handle the text changed here
}
Notice that we're not calling UpdateTextBoxes_Textchange
Take a look at http://msdn.microsoft.com/
Here is my code... It does not do anything.
I have put breakpoints in and it never gets to the event.
protected void btnNext_Click(object sender, EventArgs e)
{
updateDB();
}
protected void updateDB()
{
TextBox Comments = (TextBox)FormView1.FindCon
Comments.TextChanged += UpdateTextBoxes_Textchange
}
protected void UpdateTextBoxes_Textchange
{
Response.Write("Empty");
}
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Answer for Membership
by: CraigWagnerPosted on 2009-07-08 at 08:16:44ID: 24804682
1. Create your event handler (which it looks like you've already done).
2. In the form designer, select one of the TextBox controls
3. Bring up the properties for Textbox1.
4. Click on the lightning bolt icon in the Property window to show the list of events.
5. In the TextChanged event, click the drop down arrow.
6. Select the existing event handler
7. Repeat steps 2 - 6 for the other TextBox controls