Access Page Controls while using MasterPage

Question

I tried to write a little function to reset the form to default. Therefore, I want to access the Controls of the page. I'm using a MasterPage. Maybe because of that, I have no access to the ContolsCollection via Page.Controls.

Any solutions for that?

Answer 1

Here the solution:

You have to iterate all controls and check is they have controls themselves. So you do this recursive:

public void ResetForm(ControlCollection objSiteControls)
    {
        foreach (Control objCurrControl in objSiteControls)
        {
            string strCurrControlName = objCurrControl.GetType().Name;

            if (objCurrControl.HasControls())
            {
                ResetForm(objCurrControl.Controls);
            }

            switch (strCurrControlName)
            {
                case "TextBox":
                    TextBox objTextBoxControl = (TextBox)objCurrControl;
                    objTextBoxControl.Text = string.Empty;
                    break;
                case "DropDownList":
                    DropDownList objDropDownControl = (DropDownList)objCurrControl;
                    objDropDownControl.SelectedIndex = -1;
                    break;
                case "GridView":
                    GridView objGridViewControl = (GridView)objCurrControl;
                    objGridViewControl.SelectedIndex = -1;
                    break;
                case "CheckBox":
                    CheckBox objCheckBoxControl = (CheckBox)objCurrControl;
                    objCheckBoxControl.Checked = false;
                    break;
                case "CheckBoxList":
                    CheckBoxList objCheckBoxListControl = (CheckBoxList)objCurrControl;
                    objCheckBoxListControl.ClearSelection();
                    break;                    
                case "RadioButtonList":
                    RadioButtonList objRadioButtonList = (RadioButtonList)objCurrControl;
                    objRadioButtonList.ClearSelection();
                    break;

            }
        }
    }