Date Format in datatable

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C#

ASP.NET

Hi,


I am working on a web application and I am applying RowUpdating event and updating the result in a datetable.
In design view

<pre lang="xml">asp:TemplateField HeaderText="Date of Birth" SortExpression="D_O_B">
            <EditItemTemplate>
                <asp:TextBox ID="txtgrddob" runat="server"
                    Text='<%# Eval("D_O_B","{0:dd/MMM/yyyy}") %>'></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:Label ID="lblgrddob" runat="server" Text='<%# Bind("D_O_B","{0:dd/MMM/yyyy}") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>

In code

DataRow dr = ds.Tables[0].Rows.Find(grdReplicate.DataKeys[e.RowIndex].Values[0].ToString());
dr["D_O_B"] = txtdob.Text;

When I store this dataset inside the datatable,I am not getting the dateformat in
dd/MMM/YYYY format.

I Have used ToString and string.format method