Programing in WPF

Question

i want to create a function to clear all textbox

============================================

private void BTN_FORM_Click(object sender, EventArgs e)
{
foreach (Control x in Controls)

//foreach (Control c in Controls)
{
if (c is TextBox)
{
c.Text = "";
}
}
}

===============================

this code is giving error

" the name 'controls' does not exist in current context" ;

Please help its very urgent

Thanks in advance.

Nilesh Shah · Answer

Simple most solution: Let's say you have a grid at main level (name=mainGrid) and inside that there are some textboxes and you want to clear them: foreach (var item in mainGrid.Children) { if (item.GetType() == typeof (TextBox)) { ((TextBox)item).Text = string .Empty; } } Little complex solution: Now what if inside grid you have other containers like canvas and inside that there are some text boxes up to nth level of child. So you need to traverse all controls and their children to find any textbox and clear it. First create a recursive function to find children controls and clear them: static public void ClearTextBoxes(Visual parentControl) { int childrenCount = VisualTreeHelper.GetChildrenCount(parentControl); for ( int i = 0; i { var visualChild = (Visual)VisualTreeHelper.GetChild(parentControl i); if (visualChild is TextBox) { TextBox tb = (TextBox)visualChild; tb.Clear(); } ClearTextBoxes(visualChild); } } Then call it passing the main grid at top level private void button1_Click( object sender RoutedEventArgs e) { ClearTextBoxes(mainGrid); } Sample project is attached so you can play with it!