hi
I have a custom
control, (relevant code at
the bottom)
it consists of some text/links and a hidden textbox (rather than a hidden input). when rendered,
the user via another dialog and some JS sets
the value of
the textbox to an integer and clicks submit on
the form.
i am trying to assure that
the user has entered a number (via
the JS) and that
the textbox is not still set to its default of "0"
the requiredfieldvalidator works just fine, if i dont change
the value it spots it on
the client and fills
the validation summary on
the page with
the appropriate message.
unfortunately when i do fill
the textbox,
the validator also rejests
the post as
the controls textbox text value is still set to "0", even though on
the form it has changed.
clearly i am doing something wrong.. but cant work out what it is?
could someone enlighten me please, this is driving me potty
if i step through
the code, when
the get of
the mediaidtext is hit,
the findcontrol finds
the textbox, but
the value is still set to "0"
many thanks
code below
nat
[ValidationProperty("MediaIdText")]
public class MediaLibraryFileControl: CompositeControl {
private int mediaId = 0;
public int MediaId {
get { return mediaId; }
set { mediaId = value; }
}
public string MediaIdText
{
get
{
string txt = "0";
Control ctrl = this.FindControl(this.UniqueID+ "_hidden");
try
{
txt = ((TextBox)ctrl).Text;
MediaId = Convert.ToInt32(txt);
}
catch { MediaId = 0; }
return txt;
}
}
protected override void CreateChildControls()
{
this.Controls.Add(new LiteralControl("<span>"));
this.Controls.Add(new LiteralControl("<span id=\"" + TextControlName + "\">" + getMediaDetails() + "</span>"));
TextBox tb = new TextBox();
tb.Text = this.MediaId.ToString();
tb.ID = this.UniqueID + "_hidden";
tb.CssClass = "hidden";
this.Controls.Add(tb);
if (Select == true)
{
this.Controls.Add(new LiteralControl(string.Format(" [<a href=\"javascript:{0}(this,'{1}','{2}')\" class=\"select\">{3}</a>]", dialog, this.UniqueID, this.categoryId, "select")));
this.Controls.Add(new LiteralControl(string.Format(" [<a href=\"javascript:{0}(this,'{1}')\" class=\"select\">{2}</a>]", clearDialog, this.ID, "clear")));
}
this.Controls.Add(new LiteralControl("</span>"));
}
protected virtual string getMediaDetails() {
//...
return String.Empty;
}
}
this is
the code adding
the validationcontrol
the editcontrol is
the instance of
the control above
public override
Control RenderValidationControl(Control editControl)
{
Control ctrl = new PlaceHolder();
RequiredFieldValidator req = new RequiredFieldValidator();
req.ID = editControl.ClientID + "_validator";
req.ControlToValidate = editControl.ID;
req.Display = ValidatorDisplay.None;
req.InitialValue = "0";
req.EnableClientScript = false;
req.ErrorMessage = "
control cannot be blank";
ctrl.Controls.Add(req);
return ctrl;
}
