Multi Select Checkbox using ListView
- by Parsa
I have a CheckBox in the header of ListView. I write a code to select all Checkboxes in ItemTemplate automatically when the user select the checkBox in the header of ListView.
This code is useful, when you bind your ListView in DataPager_PreRender.
protected void DataPager1_PreRender(object sender, EventArgs e)
{
//get the user id of the current user
Guid userGuid = (Guid)Membership.GetUser().ProviderUserKey;
ListView1.DataSource = MyClass.MyStaticMethod(userGuid.ToString());
ListView1.DataBind();
}
protected void ListView1_ItemCreated(object sender, ListViewItemEventArgs e)
{
//Find the checkBox in each Row
CheckBox checkBoxRow = e.Item.FindControl("CheckBoxRow") as CheckBox;
//Assign the value of checkBoxHeader to the checkBoxRow
checkBoxRow.Checked = CheckBoxHeader.Checked;
}
protected void ListView1_PagePropertiesChanged(object sender, EventArgs e)
{
// assign false value to the CheckBoxHeader when user click on the DataPager
// so if checkboxheader is true in the page 1, when user select Page 2,this check box will be false
// therefore all checkbox rows will be false in the new page.
if (CheckBoxHeader.Checked == true)
CheckBoxHeader.Checked = false;
}
