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Reading read only column in ragdrid update

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Scott
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Scott asked on 09 Nov 2012, 10:07 PM
I am using  EditMode="InPlace" and  AllowMultiRowEdit="True" to edit a RadGrid.  I am also using a non RadGrid button to save the RadGrid to a database.  Column1 in the RadGrid is read only.  I am using ExtractValuesFromItem(newValues, editedItem) to get the cell that was changed.  This works, but I don't know how to reference the value in the read only cell in column1 to see which row was edited.  I need this to update the database based on the read only information in Column1.  I will also be adding databound dropdown lists in the EditItem template so a solution that drastically changes the code below also needs to be able to handle that.  
 
protected void SaveButton_Click(object sender, EventArgs e)
   {
       foreach (GridItem item in RadGrid1.Items)
       {
           if (item.IsInEditMode)
           {
               GridEditableItem editedItem = (GridEditableItem)item;
               Hashtable newValues = new Hashtable();
               editedItem.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);
 
               // I need to get the value in Column1 on the edited row. 
               string ReadOnlyCell = ["Column1"].toString();
 
               string ChangedCell = newValues["Column2"].ToString();
               // will update SQL here...
               editedItem.Edit = false;
           }
       }
       RadGrid1.Rebind();
   }

 

 

 

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Jayesh Goyani
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answered on 10 Nov 2012, 04:21 AM
Hello,

<Columns>
                  <telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID">
                  </telerik:GridBoundColumn>
                  <telerik:GridBoundColumn DataField="Name" UniqueName="Name" HeaderText="Name">
                  </telerik:GridBoundColumn>
                  <telerik:GridEditCommandColumn>
                  </telerik:GridEditCommandColumn>
              </Columns>
protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {
        if (e.Item is GridEditableItem && e.Item.IsInEditMode)
        {
            if (e.Item is GridEditFormInsertItem)
            {
// insert
            }
            else
            {
 // Edit
// Please add below code in your page
                GridEditableItem item = e.Item as GridEditableItem;
                item["Name"].Controls[0].Visible = false;
                Label l1 = new Label();
                l1.ID = "l1";
                l1.Text = (item["Name"].Controls[0] as TextBox).Text;
                item["Name"].Controls.Add(l1);
            }
        }
    }
 
 protected void LinkButton1_Click(object sender, EventArgs e)
    {
        foreach (GridItem item in RadGrid1.Items)
        {
            if (item.IsInEditMode)
            {
                GridEditableItem editedItem = (GridEditableItem)item;
                Hashtable newValues = new Hashtable();
                editedItem.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);
            }
        }
    }





Thanks,
Jayesh Goyani
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Shinu
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answered on 12 Nov 2012, 05:43 AM
Hi Scott,

One suggestion is to set the ReadOnly Column as the DataKeyName of the gridtableview and access the value as shown below.
aspx:
<telerik:RadGrid ID="RadGrid1" AllowMultiRowEdit="true" runat="server">
  <MasterTableView EditMode="InPlace" DataKeyNames="OrderID">
C#:
protected void Button1_Click(object sender, EventArgs e)
{
 foreach (GridItem item in RadGrid1.EditItems)
 {
   GridEditableItem editedItem = (GridEditableItem)item;
   string value = editedItem.GetDataKeyValue("OrderID").ToString();
 }
}

Thanks,
Shinu.
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Scott
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answered on 12 Nov 2012, 07:12 PM
Shinu,

Setting the ReadOnly Column as the DataKeyName works for the example I gave.  It is good to know, but I actually have multiple read only columns that I need to access.  Is there way read all items in the edited row?  I tried the code below and get "&nbsp" for the cellvalue on all three examples below.     

GridEditableItem editedItem = (GridEditableItem)item;
int index = editedItem.ItemIndex;
string cellvalue1 = RadGrid1.Items[index]["OrderID"].Text;
string cellvalue2 = RadGrid1.Items[index]["CustomerID"].Text;
 
// another method
string cellvalue3 = RadGrid1.Items[index].Cells[0].Text;


Thanks,
Scott
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Scott
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answered on 12 Nov 2012, 07:27 PM

Jayesh,

Thanks for your reply.  In your example you set the item to be not visible.   
    item["Name"].Controls[0].Visible = false;
When I set to be read only, newValues only contains the cell that was edited.  If I remove the read only tag, then both values are shown.    
    <telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID" ReadOnly="True">

Thanks,
Scott

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Scott
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answered on 13 Nov 2012, 09:53 PM
Jayesh Goyani

I got it working by applying a label to the ItemTemplate (after turning the column into a template) and then using '(Label)item.FindControl("ColumnLabel")' to get the test of the label.  I am not sure if that is what you had meant, but I have it working now.  

Scott 
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Jayesh Goyani
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answered on 14 Nov 2012, 07:00 PM
Hello,

Let me know which code you want to understand.

Thanks,
Jayesh Goyani

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Asad
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answered on 06 Dec 2013, 08:33 AM
Hi Scott,

One suggestion is to set the ReadOnly Column as the DataKeyName of the gridtableview and access the value as shown below.
aspx:
<telerik:RadGrid ID="RadGrid1" AllowMultiRowEdit="true" runat="server">
  <MasterTableView EditMode="InPlace" DataKeyNames="OrderID">
C#:
protected void Button1_Click(object sender, EventArgs e)
{
 foreach (GridItem item in RadGrid1.EditItems)
 {
   GridEditableItem editedItem = (GridEditableItem)item;
   string value = editedItem.GetDataKeyValue("OrderID").ToString();
 }
}

Thanks Shinu,, been searching for this
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Scott
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Jayesh Goyani
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Shinu
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Scott
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Asad
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