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Editing selected columns

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CBARS
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CBARS asked on 07 Oct 2008, 03:04 PM
Hi

I have a RadGrid that I fill with a dynamically generated DataTable, like this :

DataTable ds = new DataTable(); 
DataColumn dc1 = new DataColumn("Column 1"); 
DataColumn dc2 = new DataColumn("Column 2"); 
ds.Columns.Add(dc1); 
ds.Columns.Add(dc2); 
 
for (int i = 0; i < Convert.ToInt16(NoOfRows); i++) 
    DataRow dr = ds.NewRow(); 
    dr["Column 1"] = i.ToString + " Level"; 
    ds.Rows.Add(dr); 
 
RadGrid1.DataSource = ds
RadGrid1.DataBind(); 

Column 1 contains text (1 Level, 2 Level, 3 Level etc), depending on NoOfRows. Column 2 is a GridDropDownColumn, with the items in the dropdowns is filled from the DB.

I want to make Column 2 editable, while keeping Column 1 in read-only mode. How can I do this?

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Daniel
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answered on 08 Oct 2008, 03:20 PM
Hello Marcel,

Try to modify the code as follows:
DataTable ds = new DataTable();  
DataColumn dc1 = new DataColumn("Column 1");  
DataColumn dc2 = new DataColumn("Column 2");  
 
dc1.ReadOnly = true
 
ds.Columns.Add(dc1);  
ds.Columns.Add(dc2);  
  
for (int i = 0; i < Convert.ToInt16(NoOfRows); i++)  
{  
    DataRow dr = ds.NewRow();  
    dr["Column 1"] = i.ToString() + " Level";  
    ds.Rows.Add(dr);  
}  
  
RadGrid1.DataSource = ds;  
RadGrid1.DataBind();  

Regards,
Daniel
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CBARS
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answered on 09 Oct 2008, 08:41 AM
Hi

I've tried setting the DataColumn's ReadOnly property to true, but it's still editable on the page.

Can it be because of the way I make the one column editable? I'm capturing the Page_Render event, like so :

foreach (Telerik.Web.UI.GridDataItem item in grdIdentifiers.Items) 
    item.Edit = true
grdIdentifiers.Rebind(); 

I know this makes all the GridDataItems editable, but shouldn't the ReadOnly property be preventing it from being edited? Is GridDataItem.Edit supposed to override the ReadOnly property?


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CBARS
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answered on 09 Oct 2008, 12:14 PM
I've tried the code here :

protected void Page_PreRender(object sender, EventArgs e) 
    foreach (Telerik.Web.UI.GridDataItem item in grdIdentifiers.Items) 
    { 
        if (item is Telerik.Web.UI.GridEditableItem) 
        { 
            Telerik.Web.UI.GridEditableItem editableItem = item as 
                 Telerik.Web.UI.GridDataItem; 
            editableItem.Edit = true
        } 
    } 
    grdIdentifiers.Rebind(); 

in other words, adding the 'is GridEditableItem' condition, but my first column is still editable.
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Daniel
Telerik team
answered on 10 Oct 2008, 05:07 PM
Hello Marcel,

As you properly noticed e.Item.Edit = "true" is causing the mentioned behavior.

You can try this approach if it's appropriate for your scenario:
protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e) 
    GridEditFormItem item = e.Item as GridEditFormItem; 
    if (item != null && e.Item.IsInEditMode) 
    {  
        (item["Name"].Controls[0] as TextBox).Enabled = false
    } 

Best regards,
Daniel
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CBARS
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answered on 15 Oct 2008, 10:31 AM
Hi Daniel

I've just about tried every combination of Pre_Render and Item_Created events to try and keep the one column read-only, while the other is editable. The previous suggestion doesn't work, as the combination of Item.Edit and disabling the textbox control in the cell, once again either makes everything read-only, or everything editable.

Is there a standard way of doing this? Do you have a complete example?
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Daniel
Telerik team
answered on 17 Oct 2008, 03:23 PM
Hello Marcel,

I created two simple examples - for both InPlace and EditForms modes.

Let us know when you test them.

Best regards,
Daniel
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CBARS
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answered on 20 Oct 2008, 01:25 PM
Thanks Daniel.

I've tried the InPlace mode, works perfect.
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