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Unable to make field invisible during Edit/Insert mode.

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Milan Gurung
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Milan Gurung asked on 07 Jan 2009, 11:17 AM
Hi,

I have a radGrid as below (partial code):

<Columns>
                   <telerik:GridTemplateColumn DataField="InvoiceDetailID" HeaderText="InvoiceDetailID" UniqueName="InvoiceDetailID" Display="false">
                        <ItemTemplate>
                            <asp:Label ID="lblInvoiceDetailID" runat="server" Text='<%# Bind("InvoiceDetailID") %>' >' </asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtInvoiceDetailID" Text='<%# Bind("InvoiceDetailID") %>'  runat="server" ReadOnly="true"></asp:TextBox>
                        </EditItemTemplate>
                    </telerik:GridTemplateColumn>
</Coloumns>

My problem is when the Grid is in Edit or Insert mode, InvoiceDetailID field is visible even when Display property is set to False. Any idea?

Thanks a lot.

Cheers,
Milan G

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Princy
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answered on 07 Jan 2009, 01:07 PM
Hello Milan,

Try the following code (for instance in the page load event) to hide the EditItemTemplate as such for the TemplateColumn:
cs:
        GridTemplateColumn column = (GridTemplateColumn)RadGrid1.MasterTableView.GetColumnSafe("InvoiceDetailID"); 
        column.EditItemTemplate = null
         

Another suggestion is to hide the TextBox in the EditItemTemplate of the TemplateColumn in EditMode, using the following code.
cs:
 
protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)  
    {  
       if (e.Item is GridEditableItem && e.Item.IsInEditMode)  
        {  
  
            GridEditableItem item=(GridEditableItem)e.Item; 
            TextBox txtbox = (TextBox)item["InvoiceDetailID"].FindControl("txtInvoiceDetailID");  
            txtbox.Visible = false;  
  
        }         
    }  
 

Thanks
Princy.
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Milan Gurung
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answered on 07 Jan 2009, 02:08 PM

Princy,

Thanks for the earlier help - the trouble now is the eventhough textbox is invisible, its corresponding label is still dangling around.
Any idea? I tried following but didn't work.

If
TypeOf e.Item Is GridEditableItem And e.Item.IsInEditMode Then

 

 

Dim eItem As GridEditableItem = e.Item

 

 

CType(eItem("InvoiceDetailID").FindControl("txtInvoiceDetailID"), TextBox).Visible = False

 

 

Item("InvoiceDetailID").Visible = False

 

 

End If

On trying this, I got NULL Exception :(

CType(eItem("InvoiceDetailID").FindControl("lbInvoiceDetailID"), Lable).Visible = False

Any suggestion?

Cheers,
Milan G

 

 

 

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Steve Y
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answered on 07 Jan 2009, 03:34 PM
Hi Milan,

I think if you make the template column display="false" and readonly="true" you should get what you need. Also, unless you have a specific need for it that I don't understand from your code, you shouldn't declare the EditItemTemplate for this field as you're not using it...

<Columns> 
                   <telerik:GridTemplateColumn DataField="InvoiceDetailID" HeaderText="InvoiceDetailID" UniqueName="InvoiceDetailID" Display="false" ReadOnly="true"
                        <ItemTemplate> 
                            <asp:Label ID="lblInvoiceDetailID" runat="server" Text='<%# Bind("InvoiceDetailID") %>' ></asp:Label> 
                        </ItemTemplate> 
                    </telerik:GridTemplateColumn> 
</Columns> 

Regards, Steve


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Milan Gurung
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answered on 07 Jan 2009, 03:53 PM
Hi Steve,

ReadOnly property doesn't exist. Help me out.
FYI,I need store the "InvoiceDetailID" so that I can update the record based it.


Thanks.
Milan G
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Steve Y
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answered on 07 Jan 2009, 04:00 PM
Hmm. I just tried a test of what I suggested and it works fine for me.

Here's what I put into a quick grid...

    <Columns> 
        <Telerik:GridBoundColumn DataField="LeadNameId" DataType="System.Int32"  
            HeaderText="LeadNameId" ReadOnly="True" SortExpression="LeadNameId"  
            UniqueName="LeadNameId"
        </Telerik:GridBoundColumn> 
                   <telerik:GridTemplateColumn DataField="TeamId" HeaderText="TeamId" UniqueName="TeamId" Display="false" ReadOnly="true"
                        <ItemTemplate> 
                            <asp:Label ID="TeamId" runat="server" Text='<%# Bind("TeamId") %>' ></asp:Label> 
                        </ItemTemplate> 
                        <EditItemTemplate> 
                            <asp:TextBox ID="TeamId" Text='<%# Bind("TeamId") %>'  runat="server" ReadOnly="true"></asp:TextBox> 
                        </EditItemTemplate> 
                    </telerik:GridTemplateColumn> 
        <Telerik:GridBoundColumn DataField="LeadName" HeaderText="LeadName"  
            SortExpression="LeadName" UniqueName="LeadName"
        </Telerik:GridBoundColumn> 
    </Columns> 

It worked exactly as I expected and does what you are looking for.




Are you using RadControls for ASP.NET AJAX? What version do you have?

Regards, Steve
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Milan Gurung
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answered on 07 Jan 2009, 04:08 PM
Hi Steve,

I rechecked my code - ReadOnly Property is not allowed for  GridTemplateColumn. I using ASP.NET Ajax Q2 2008  VERSION: 2008.2.723.20

Any idea why I am having a problem?

Thanks a lot.

Cheers,
Milan G
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Steve Y
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answered on 07 Jan 2009, 04:24 PM
ReadOnly for GridTemplateColumn was added in Q3 2008 release. Check out the release notes here.

http://www.telerik.com/products/aspnet-ajax/whats-new/release-history/q3-2008-version-number-2008-3-1105.aspx

Regards, Steve



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Milan Gurung
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answered on 07 Jan 2009, 04:27 PM
Steve,

Many thanks indeed. I will have a look into it.

Cheers,
Milan G
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