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Clearing Form Fields the Easy Way in ASP.net Using C#
Ever wanted to clear your fields in the form without having to set the text properties or selected items? Well below I have simple method to do this. The only real catch to this method is your fields have to be in a container. I usually put all my fields in panel, for example:
put your form fields here
The method below iterates through the form fields and clears them:
public void ClearFormFields(System.Web.UI.Control parent)
{
//where parent is a panel;
foreach (Control c in parent.Controls)
{
if ((c.GetType() == typeof(TextBox)))
{
// is it a textbox?
TextBox t = (TextBox)c;
t.Text = "";
}
else if ((c.GetType() == typeof(DropDownList)))
{
// is it a dropdown list?
DropDownList d = (DropDownList)c;
d.ClearSelection();
}
else if ((c.GetType() == typeof(ListBox)))
{
// is it a listbox?
ListBox l = (ListBox)c;
l.ClearSelection();
}
else if ((c.GetType() == typeof(RadioButtonList)))
{
// is it a radiobutton list?
RadioButtonList rl = (RadioButtonList)c;
rl.ClearSelection();
}
else if ((c.GetType() == typeof(CheckBox)))
{
// is it a checkbox?
CheckBox chk = (CheckBox)c;
chk.Checked = false;
}
else if ((c.GetType() == typeof(CheckBoxList)))
{
// is it a radiobutton list?
CheckBoxList cl = (CheckBoxList)c;
cl.ClearSelection();
}
/*if (c.HasControls())
{
ClearFields(c);*/
}
}
}
You can call this as follows:
ClearFormFields(this.panel);
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