RadioButtonList DropDownList In GridView Edit Mode In ASP.NET

In this example i am going to describe how to implement RadioButtonList and DropDOwnList in Edit mode of GridVIew using EditItemTemaplate in ASP.NET C# and VB.NET.

RadioButton and DropDOwnList are selected in edit mode based on value saved in DataBase

HTML markup of aspx page is mentioned below 

<asp:GridView ID="GridView1" runat="server" DataKeyNames="ID" 
              AutoGenerateColumns="False" 
              DataSourceID="SqlDataSource1" 
              OnRowDataBound="GridView1_RowDataBound" 
              OnRowUpdated="GridView1_RowUpdated" 
              OnRowUpdating="GridView1_RowUpdating" 
              OnRowEditing="GridView1_RowEditing">
 <Columns>
 <asp:TemplateField HeaderText="ID">
 <ItemTemplate>
 <asp:Label ID="lblID" runat="server" Text='<%#Eval("ID") %>'>
 </asp:Label>
 </ItemTemplate>
 </asp:TemplateField>
 
 <asp:BoundField DataField="Name" HeaderText="Name" 
                 SortExpression="Name" />
 <asp:TemplateField HeaderText="Gender">
 <ItemTemplate>
 <asp:Label ID="lblGender" runat="server" 
            Text='<%#Eval("Sex") %>'>
 </asp:Label>
 </ItemTemplate>
 <EditItemTemplate>
 <asp:RadioButtonList ID="rbGenderEdit" runat="server">
 <asp:ListItem>Male</asp:ListItem>
 <asp:ListItem>Female</asp:ListItem>
 </asp:RadioButtonList>
 </EditItemTemplate>
 </asp:TemplateField>
 
 <asp:TemplateField HeaderText="Marital Status">
 <ItemTemplate>
 <asp:Label ID="lblStatus" runat="server" 
            Text='<%#Eval("MaritalStatus") %>'>
 </asp:Label>
 </ItemTemplate>
 <EditItemTemplate>
 <asp:DropDownList ID="ddlStatusEdit" runat="server">
 <asp:ListItem>Single</asp:ListItem>
 <asp:ListItem>Married</asp:ListItem>
 </asp:DropDownList>
 </EditItemTemplate>
 </asp:TemplateField>
 <asp:CommandField ShowEditButton="True" />
</Columns>
</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [ID], [Name], [Sex], [MaritalStatus] 
               FROM [Details]" 
UpdateCommand="Update Details Set [Name]=@Name, [Sex]=@Sex, 
              [MaritalStatus]=@MaritalStauts Where [ID]=@ID">
   <UpdateParameters>
       <asp:Parameter Name="Name" />
       <asp:Parameter Name="Sex" />
       <asp:Parameter Name="ID" />
       <asp:Parameter Name="MaritalStauts" />
   </UpdateParameters>
</asp:SqlDataSource>

C# Code Behind

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
 DataRowView dRowView = (DataRowView)e.Row.DataItem;
 if (e.Row.RowType == DataControlRowType.DataRow)
 {
   if ((e.Row.RowState & DataControlRowState.Edit) > 0)
   {
     RadioButtonList rblGender = (RadioButtonList)e.Row.FindControl("rbGenderEdit");
     DropDownList ddlStatus = (DropDownList)e.Row.FindControl("ddlStatusEdit");
     rblGender.SelectedValue = dRowView[2].ToString();
     ddlStatus.SelectedValue = dRowView[3].ToString();
   }
 }
       
}
   
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
 RadioButtonList rblGender = (RadioButtonList)GridView1.Rows[e.RowIndex].FindControl("rbGenderEdit");
 DropDownList ddlStatus = (DropDownList)GridView1.Rows[e.RowIndex].FindControl("ddlStatusEdit");
 SqlDataSource1.UpdateParameters["Sex"].DefaultValue = rblGender.SelectedValue;
 SqlDataSource1.UpdateParameters["MaritalStauts"].DefaultValue = ddlStatus.SelectedValue;
}

VB.NET Code Behind

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    Dim dRowView As DataRowView = DirectCast(e.Row.DataItem, DataRowView)
    If e.Row.RowType = DataControlRowType.DataRow Then
        If (e.Row.RowState And DataControlRowState.Edit) > 0 Then
            Dim rblGender As RadioButtonList = DirectCast(e.Row.FindControl("rbGenderEdit"), RadioButtonList)
            Dim ddlStatus As DropDownList = DirectCast(e.Row.FindControl("ddlStatusEdit"), DropDownList)
            rblGender.SelectedValue = dRowView(2).ToString()
            ddlStatus.SelectedValue = dRowView(3).ToString()
        End If
        
    End If
End Sub

Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As GridViewUpdateEventArgs)
    Dim rblGender As RadioButtonList = DirectCast(GridView1.Rows(e.RowIndex).FindControl("rbGenderEdit"), RadioButtonList)
    Dim ddlStatus As DropDownList = DirectCast(GridView1.Rows(e.RowIndex).FindControl("ddlStatusEdit"), DropDownList)
    SqlDataSource1.UpdateParameters("Sex").DefaultValue = rblGender.SelectedValue
    SqlDataSource1.UpdateParameters("MaritalStauts").DefaultValue = ddlStatus.SelectedValue
End Sub

Hope this helps.

Download sample code attached