Problems with RadGrid

[VS]

Hi,

I have a grid with a column as,

<rad:GridBoundColumn DataField="ProcessDescription" EditFormColumnIndex="1" HeaderText="Description" UniqueName="Description">
                    <HeaderStyle Font-Bold="true" />
                </rad:GridBoundColumn>

Now when i tried to make certain columns as disabled in edit mode in the ItemDatabound event, its working fine but when i move the cursor on top of that disabled field, i get a javascript error which says
My aim is to just display it in a label with the text in grid.

I tried disabling as below,

if (e.Item is GridEditableItem && ((GridEditableItem)e.Item).IsInEditMode)
            {
                GridEditableItem editItem = (GridEditableItem)e.Item;

                TextBox txtDesc = (TextBox)editItem["Description"].Controls[0];
                txtDesc.Enabled = false;
            }

Similar to this i have a date column as
 <rad:GridDateTimeColumn DataField="EndDate" EditFormColumnIndex="0" DataFormatString="{0:d}" meta:resourcekey="GridTemplateColumnResource2">
                    <HeaderStyle Font-Bold="true" />
                </rad:GridDateTimeColumn>    

When i edit mode, i need to display only the date in a label and not in a date control. I want to make it not to be visible when in insert mode.

"Sys.ArgumentException: Value must be a DOm element. Parameter name:element".

How to solve this or Is there a better method to make certain columns in a grid as disabled when in editmode.

In Insert mode ( i mean when i click ' Add new record' link at the top of the grid), i want to make this column as not visible. How will i be able to achieve this?

Regards

Sujith

[Vlad]

Hi Sujith,

This is general problem in Microsoft ASP.NET AJAX. Please check this thread for more info:
http://forums.asp.net/p/1151199/2496957.aspx

Kind regards,
Vlad
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[Princy]

Hi Sujith,

Try with the following code snippet to make the GridDateTimeColumn ReadOnly only in Insert mode.

ASPX:

<telerik:GridDateTimeColumn UniqueName="DateCol" DataField="Date"    HeaderText="DateCol" ></telerik:GridDateTimeColumn>

CS:

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        foreach (GridItem item in RadGrid1.MasterTableView.Items)
        {

            if ((item.OwnerTableView.IsItemInserted) && (!item.IsInEditMode))
            {
                foreach (GridColumn col in RadGrid1.MasterTableView.RenderColumns)
                {
                    if ((col.UniqueName == "DateCol") && (col.ColumnType == "GridDateTimeColumn"))
                    {
                        GridDateTimeColumn DateCol = (GridDateTimeColumn)col;
                        DateCol.ReadOnly = true;
                    }
                }
            }
            else if ((item.Edit) && (!item.OwnerTableView.IsItemInserted))
            {
                if (item is GridEditableItem)
                {
                    GridEditableItem edititem = (GridEditableItem)item;
                    foreach (GridColumn col in RadGrid1.MasterTableView.RenderColumns)
                    {
                        if ((col.UniqueName == "DateCol") && (col.ColumnType == "GridDateTimeColumn"))
                        {
                            GridDateTimeColumn DateCol = (GridDateTimeColumn)col;
                            DateCol.ReadOnly = false;
                        }

                    }


                }

            }


        }
        RadGrid1.Rebind();
    }

 Code to replace the RadDatePicker of the GridDateTimeColumn with a label in the edit mode.

CS:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if ((e.Item is GridEditableItem) && (e.Item.IsInEditMode)&&(!e.Item.OwnerTableView.IsItemInserted))
        {
            GridEditableItem edititem = (GridEditableItem)e.Item;
            RadDatePicker pkr = (RadDatePicker)edititem["DateCol"].Controls[0];
            Label lbl = new Label();
            lbl.ID = "Label1";
            lbl.Text = pkr.DbSelectedDate.ToString();
            edititem["DateCol"].Controls.Clear();
            edititem["DateCol"].Controls.Add(lbl);
        }
    }

Thanks
Princy.