index > Windows Forms Designer > hi pls help me to limit my textbox as only integer 8 digit not less then 8

hi pls help me to limit my textbox as only integer 8 digit not less then 8

hi pls help me to limit my textbox as only integer 8 digit not less then 8

in vb.net.

I cant use maskedtextbox for that because we have userControls to use.

reply me soon thanks this is for phone number

jalpa Thursday, May 29, 2008 6:32 AM

Hi,

You can implement the KeyDown event handler of your TextBox control and perform a check operation.

Code Snippet

private void Form1_Load(object sender, EventArgs e)
{
textBox1.KeyDown += new KeyEventHandler(textBox1_KeyDown);
}

void textBox1_KeyDown(object sender, KeyEventArgs e)
{
if(textBox1.Text.Length > 8)
{
MessageBox.Show("No more that 8 digits");
}
}

Regards,

Jacob

Jacob Sui - MSFT Monday, June 02, 2008 7:13 AM

Hi,

You can implement the KeyDown event handler of your TextBox control and perform a check operation.

Code Snippet

private void Form1_Load(object sender, EventArgs e)
{
textBox1.KeyDown += new KeyEventHandler(textBox1_KeyDown);
}

void textBox1_KeyDown(object sender, KeyEventArgs e)
{
if(textBox1.Text.Length > 8)
{
MessageBox.Show("No more that 8 digits");
}
}

Regards,

Jacob

Jacob Sui - MSFT Monday, June 02, 2008 7:13 AM

You can use google to search for other answers

Custom Search

More Threads

• Understanding ZOrder

• creating a windows basesd webservice using vb.net

• Inherited Control

• Common Langauge Runtime Debugging Services

• Form designer does not handle Generic List properties of custom controls... ???

• Expert evaluation required : CanParent, OnParentChanged workaround

• What's wrong with the designer ?

• Adding Design mode (Toolstrip) on C# Windows Custom Control

• Form resized by IDE

• Three D Buttons