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Windows

Archive for the ‘WPF’ Category

How to bring the cursor to the end of text in the textbox control – WPF C#

March 23rd, 2010

joy

Normally if we focus a textbox control the cursor would be in the start of the textbox.But when there is text already in the textbox it would be annoying if the cursor is in start.It would be better if the cursor is at the end of content in texbox.

Thus to position the cursor at the end of the text content of a textBox control,we have to call the select method and specify the selection start position to the length of the text and a selection length to 0.

txtExample.focus();
txtExample.Select(txtExample.Text.Length, 0);

Ref : msdn

Popularity: 8% [?]

Posted in C#, WPF

Tags: C, Textbox, WPF

No Comments »

How to Text Wrap a Label in WPF?

January 26th, 2010

joy

WPF does not allow text wrapping for label control.Thus to wrap a label with a fixed width,we have to place the TextBlock control inside the label control and set its TextWrapping property to “Wrap”.

<Label Width=”50″>
<TextBlock TextWrapping=”Wrap”> I am label with width 50</TextBlock>
</Label>

Popularity: 12% [?]

Posted in C#, WPF

No Comments »

How To Call a Button Click From Another Button in c#

November 8th, 2009

joy

If there is a requirement for calling a button click event from another button in c#, there is a easy way to do.We just need to call the PerformClick Method of the button to be fired.

private void button1_Click(object sender, EventArgs e)
{
    button2.PerformClick();
}
 
private void button2_Click(object sender, EventArgs e)
{
    System.Windows.Forms.MessageBox.Show("I am called from button1");
}

Popularity: 11% [?]

Posted in C#, WPF

Tags: Button, Button Click, Button Event, C# button, Call Button

No Comments »

Make Textbox Number Only – WPF

September 28th, 2009

joy

Coding :

private void txt_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
e.Handled = !ValidNumeric(e.Text);
base.OnPreviewTextInput(e);
}
 
bool ValidNumeric(string str)
{
bool ret = true;
 
int l = str.Length;
for (int i = 0; i &lt; l; i++)
{
char ch = str[i];
ret &= Char.IsDigit(ch);
}
 
return ret;
}