Set ASP.Net DropDownList selected Item Error: There is no row at position 0

Hi ashfaq,

Refer below sample.

HTML

<asp:GridView ID="GVPrd" runat="server" AutoGenerateSelectButton="True" OnSelectedIndexChanged="GVPrd_SelectedIndexChanged">
</asp:GridView>
<br />
<asp:DropDownList ID="DDLFl" runat="server">
    <asp:ListItem Text="Select" />
    <asp:ListItem Text="60's Jackets" />
    <asp:ListItem Text="50's Jackets" />
    <asp:ListItem Text="30's Jackets" />
    <asp:ListItem Text="20's Jackets" />
</asp:DropDownList>

Namespaces

C#

using System.Data;

VB.Net

Imports System.Data

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable(); dt.Columns.AddRange(new DataColumn[] { new DataColumn("ItemId", typeof(int)), new DataColumn("ItemName", typeof(string)) });
        dt.Rows.Add(1, "60's Jackets");
        dt.Rows.Add(2, "50's Jackets");
        dt.Rows.Add(3, "30's Jackets");
        dt.Rows.Add(4, "20's Jackets");
        this.GVPrd.DataSource = dt;
        this.GVPrd.DataBind();
    }
}

protected void GVPrd_SelectedIndexChanged(object sender, EventArgs e)
{
    foreach (GridViewRow row in GVPrd.Rows)
    {
        if (row.RowIndex == GVPrd.SelectedIndex)
        {
            DDLFl.ClearSelection();
            DDLFl.Items.FindByText(Server.HtmlDecode(row.Cells[2].Text)).Selected = true;
        }
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Dim dt As DataTable = New DataTable()
        dt.Columns.AddRange(New DataColumn() {New DataColumn("ItemId", GetType(Integer)), New DataColumn("ItemName", GetType(String))})
        dt.Rows.Add(1, "60's Jackets")
        dt.Rows.Add(2, "50's Jackets")
        dt.Rows.Add(3, "30's Jackets")
        dt.Rows.Add(4, "20's Jackets")
        Me.GVPrd.DataSource = dt
        Me.GVPrd.DataBind()
    End If
End Sub

Protected Sub GVPrd_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
    For Each row As GridViewRow In GVPrd.Rows

        If row.RowIndex = GVPrd.SelectedIndex Then
            DDLFl.ClearSelection()
            DDLFl.Items.FindByText(Server.HtmlDecode(row.Cells(2).Text)).Selected = True
        End If
    Next
End Sub

Screenshot