RadGrid: Get the modified Items on edit - asp.net

Question

On a RadGrid I can use the CommandItemTemplate to define my own buttons for, in my case, Save and Cancel the edit (like below)
<CommandItemTemplate>
<div style="padding: 5px 5px;">
<asp:LinkButton ID="btnUpdateEdited" runat="server" CommandName="UpdateEdited">Update</asp:LinkButton>
<asp:LinkButton ID="btnCancel" runat="server" CommandName="CancelAll">Cancel editing</asp:LinkButton>
</div>
</CommandItemTemplate>
On the code behind, I set up the ItemCommand.
> protected void RadGrid1_ItemCommand(object sender, GridCommandEventArgs e)
{
if (e.CommandName.CompareTo("UpdateEdited") == 0)
{
var commandItem = ((GridCommandItem)e.Item);
//Updade code here.
}
}
How can I access the modified row with the modified fields so I can perform an updade?

Answer 1

You should have them in command item and you can access them like this:
GridDataItem item = (GridDataItem)e.Item;
string value = item["ColumnUniqueName"].Text;

Answer 2

Is this what you want ? Just a sample you might need to modify it..
.aspx
<telerik:RadGrid ID="rg" runat="server" AutoGenerateColumns="false"
OnNeedDataSource="rg_NeedDataSource" OnItemCommand="rg_ItemCommand"
MasterTableView-CommandItemDisplay="Top" OnItemDataBound="rg_ItemDataBound">
<MasterTableView EditMode="InPlace">
<CommandItemTemplate>
<div style="padding: 5px 5px;">
<asp:LinkButton ID="btnUpdateEdited" runat="server"
CommandName="UpdateEdited">Update</asp:LinkButton>
<asp:LinkButton ID="btnCancel" runat="server"
CommandName="CancelAll">Cancel editing</asp:LinkButton>
</div>
</CommandItemTemplate>
<Columns>
<telerik:GridTemplateColumn>
<ItemTemplate>
<asp:Label ID="lbl" runat="server"
Text='<%# Eval("A") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="txt" runat="server"
Text='<%# Eval("A") %>'></asp:TextBox>
</EditItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn>
<ItemTemplate>
<asp:LinkButton ID="btnEdit" runat="server" Text="Edit"
CommandName="Edit"></asp:LinkButton>
</ItemTemplate>
<EditItemTemplate> </EditItemTemplate>
</telerik:GridTemplateColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
.cs
protected void Page_Load(object sender, EventArgs e)
{
// Check
if (!IsPostBack)
{
// Variable
DataTable dt = new DataTable();
dt.Columns.Add("A");
dt.Rows.Add("A1");
// Check & Bind
if (dt != null)
{
// Viewstate
ViewState["Data"] = dt;
rg.DataSource = dt;
rg.DataBind();
dt.Dispose();
}
}
}
protected void rg_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
rg.DataSource = ViewState["Data"] as DataTable;
}
protected void rg_ItemCommand(object sender, GridCommandEventArgs e)
{
// Check
if (e.CommandName == "UpdateEdited")
{
// Variable
DataTable dt = new DataTable();
dt.Columns.Add("A");
// Loop All
foreach (GridEditableItem item in rg.Items)
{
// Find Control
TextBox txt = item.FindControl("txt") as TextBox;
// Check & Add to DataTable
if (txt != null) dt.Rows.Add(txt.Text.Trim());
}
// Check
if (dt != null && dt.Rows.Count > 0)
{
// Set Viewstate
ViewState["Data"] = dt;
// Bind
rg.DataSource = dt;
rg.DataBind();
// Dispose
dt.Dispose();
}
}
else if (e.CommandName == "CancelAll")
{
// Clear Edit Mode
rg.MasterTableView.ClearChildEditItems();
// Rebind
rg.Rebind();
}
}
protected void rg_ItemDataBound(object sender, GridItemEventArgs e)
{
// Check
if (e.Item is GridCommandItem)
{
// Find Control
LinkButton btnUpdateEdited = e.Item.FindControl("btnUpdateEdited") as LinkButton;
LinkButton btnCancel = e.Item.FindControl("btnCancel") as LinkButton;
// Get is Edit Mode ?
if (rg.EditIndexes.Count > 0)
{
if (btnUpdateEdited != null) btnUpdateEdited.Visible = true;
if (btnCancel != null) btnCancel.Visible = true;
}
else
{
if (btnUpdateEdited != null) btnUpdateEdited.Visible = false;
if (btnCancel != null) btnCancel.Visible = false;
}
}
}