asp.net next traverses the code for all specified controls on the page
- 2020-05-07 19:30:05
- OfStack
1. Walk through all TextBox on the page and set the value to String.Empty
2. Recursive traversal
A method is called
for (int j = 0; j < this.Controls.Count; j++)
{
foreach (object o in Page.Controls[j].Controls)
{
if (o is TextBox)
{
TextBox txt = (System.Web.UI.WebControls.TextBox)o;
txt.Text = String.Empty;
}
}
}
2. Recursive traversal
private void FindAllTextBoxByPageControl(ControlCollection controlCollection)
{
for (int i = 0; i < controlCollection.Count; i++)
{
if (controlCollection[i].GetType() == typeof(TextBox)) //System.Web.UI.WebControls.TextBox
{
(controlCollection[i] as TextBox).Text = String.Empty;
}
if (controlCollection[i].HasControls())
{
// recursive ( important ) Otherwise, the program exits
FindAllTextBoxByPageControl(controlCollection[i].Controls);
}
}
}
A method is called
FindAllTextBoxByPageControl(Page.Controls);