Custom MOSS 2007 webpart with validation

John_Mc

Hi,

Am developing my first webpart for sharepoint 2007 and all works fine except for the input validation which is needed for the textbox. Would appreciate some help on this, thanks!

public class CreateMemberRegKey: WebPart
    {
        //Declare the button control here
        Button cmdGenerate;
        TextBox txtRCOP = new TextBox();
        Label txtMessage = new Label();

        protected override void CreateChildControls()
        {
            base.CreateChildControls();

            //instantiate the button
            cmdGenerate = new Button();
            //Add begining table elements
            Controls.Add(new LiteralControl("<table width=\"100%\">"));
            Controls.Add(new LiteralControl("<tr>"));
            Controls.Add(new LiteralControl("<td style=\"text-align:center;\">"));
            
            //Add the textbox properties
            txtRCOP.ID = "RCOPID_txt";
            txtRCOP.Width = 100;
            Controls.Add(new LiteralControl("Enter RCOP ID: "));
            this.Controls.Add(txtRCOP);
            Controls.Add(new LiteralControl("</td>"));
            Controls.Add(new LiteralControl("</tr>"));
            //Next Row for Button
            Controls.Add(new LiteralControl("<tr>"));
            Controls.Add(new LiteralControl("<td style=\"text-align:center;\">"));
            
            //Add the button properties
            cmdGenerate.ID = "cmdGenerate";
            cmdGenerate.Text = "Create Registration Key";
            cmdGenerate.ToolTip = "Click here to generate a Registration Key";
            cmdGenerate.CausesValidation = true;
            //Add the event handler and then the button
            cmdGenerate.Click += new EventHandler(cmdGenerateKey_click);
            this.Controls.Add(cmdGenerate);
            Controls.Add(new LiteralControl("</td>"));
            Controls.Add(new LiteralControl("</tr>"));
            Controls.Add(new LiteralControl("<tr>"));
            Controls.Add(new LiteralControl("<td style=\"width:95%;text-align:center;\">"));
            
            //Add the message label properties
            txtMessage.ID = "txtMessage";
            txtMessage.Text = "";
            txtMessage.Font.Size = 11;
            txtMessage.Visible = true;
            txtMessage.ForeColor = System.Drawing.Color.Red;
            this.Controls.Add(txtMessage);
            
            // Required field validator
            RequiredFieldValidator rcopRequiredValidator = new RequiredFieldValidator();
            rcopRequiredValidator.ControlToValidate = txtRCOP.ClientID;
            rcopRequiredValidator.ErrorMessage = "You must provide an RCOP ID";
            rcopRequiredValidator.Display = ValidatorDisplay.Dynamic;
           
            //Close the table tags
            Controls.Add(new LiteralControl("</td>"));
            Controls.Add(new LiteralControl("</tr>"));
            Controls.Add(new LiteralControl("</table>"));

        }

Ginger

Change to the contol to validate rcopRequiredValidator.ControlToValidate = txtRCOP;

John_Mc

Ginger wrote: »

Change to the contol to validate rcopRequiredValidator.ControlToValidate = txtRCOP;

Hi Ginger,

Thanks for the reply. Yeah, that was one of the first things I tried but no luck

Ginger

Its actually the name of the ID field so RCOPID_txt will be the value of ControlToValidate

Sorry didnt read the code the whole way through

Bluefrog

Haven't used Moss but this looks like a regular ASP.NET webform.

The control to validate should simply be the id of the textbox as previously stated - no need for the client id.

I also see you have the onClick function on the button named differently to the button. Is this function working? Is the form submitting? Is validation turned on in that page?

Ginger

Yes it is the name of the control, but in this case the OP has specified the ID value of the control as RCOPID_txt

So there are 2 options

1. ControlToValidate = "RCOPID_txt"
2. ControlToValidate = txtRCOP.ID

Should do it

John_Mc

Nice one lads, will try this out tomorrow and report back.