Pass (Send) GridView selected row to another page on row Click using C# and VB.Net in ASP.Net

Hi George616,

Check this example. Now please take its reference and correct your code.

HTML

Default

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" AllowPaging="true" PageSize="2"
    OnPageIndexChanging="OnPageIndexChanging" OnRowDataBound="OnRowDataBound" DataKeyNames="Id"
    OnSelectedIndexChanged="OnSelectedIndexChanged">
    <EmptyDataTemplate>
        <div style="text-align: center; font-weight: bolder; font-size: medium;">
            <asp:Label ID="labelTemp" runat="server" Text="No Record"></asp:Label>
        </div>
    </EmptyDataTemplate>
    <Columns>
        <asp:BoundField DataField="Name" HeaderText="File Name" />
        <asp:BoundField DataField="Country" HeaderText="Country" />
    </Columns>
</asp:GridView>

Detail

Id:<asp:Label ID="lblId" runat="server" /><br />
Name:<asp:Label ID="lblName" runat="server" /><br />
Country:<asp:Label ID="lblCountry" runat="server" />

Namespaces

C#

using System.Data;

VB.Net

Imports System.Data

Code

C#

Default

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        this.BindGrid();
    }
}

protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        e.Row.Attributes["onclick"] = Page.ClientScript.GetPostBackClientHyperlink(GridView1, "Select$" + e.Row.RowIndex);
        e.Row.ToolTip = "Click to select this row.";
    }
}

protected void OnSelectedIndexChanged(object sender, EventArgs e)
{
    foreach (GridViewRow row in GridView1.Rows)
    {
        if (row.RowIndex == GridView1.SelectedIndex)
        {
            Server.Transfer("Detail.aspx?RowIndex=" + row.RowIndex);
        }
    }
}

protected void OnPageIndexChanging(object sender, GridViewPageEventArgs e)
{
    GridView1.PageIndex = e.NewPageIndex;
    this.BindGrid();
}

private void BindGrid()
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[3] { new DataColumn("Id"), new DataColumn("Name"), new DataColumn("Country") });
    dt.Rows.Add(1, "John Hammond", "United States");
    dt.Rows.Add(2, "Mudassar Khan", "India");
    dt.Rows.Add(3, "Suzanne Mathews", "France");
    dt.Rows.Add(4, "Robert Schidner", "Russia");
    GridView1.DataSource = dt;
    GridView1.DataBind();
}

Detail

protected void Page_Load(object sender, EventArgs e)
{
    if (this.Page.PreviousPage != null)
    {
        int rowIndex = int.Parse(Request.QueryString["RowIndex"]);
        GridView GridView1 = (GridView)this.Page.PreviousPage.FindControl("GridView1");
        GridViewRow row = GridView1.Rows[rowIndex];
        lblId.Text = GridView1.DataKeys[rowIndex].Value.ToString();
        lblName.Text = row.Cells[0].Text;
        lblCountry.Text = row.Cells[1].Text;
    }
}

VB.Net

Default

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Me.BindGrid()
    End If
End Sub

Protected Sub OnRowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    If e.Row.RowType = DataControlRowType.DataRow Then
        e.Row.Attributes("onclick") = Page.ClientScript.GetPostBackClientHyperlink(GridView1, "Select$" & e.Row.RowIndex)
        e.Row.ToolTip = "Click to select this row."
    End If
End Sub

Protected Sub OnSelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
    For Each row As GridViewRow In GridView1.Rows
        If row.RowIndex = GridView1.SelectedIndex Then
            Server.Transfer("Detail.aspx?RowIndex=" & row.RowIndex)
        End If
    Next
End Sub

Protected Sub OnPageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs)
    GridView1.PageIndex = e.NewPageIndex
    Me.BindGrid()
End Sub

Private Sub BindGrid()
    Dim dt As DataTable = New DataTable()
    dt.Columns.AddRange(New DataColumn(2) {New DataColumn("Id"), New DataColumn("Name"), New DataColumn("Country")})
    dt.Rows.Add(1, "John Hammond", "United States")
    dt.Rows.Add(2, "Mudassar Khan", "India")
    dt.Rows.Add(3, "Suzanne Mathews", "France")
    dt.Rows.Add(4, "Robert Schidner", "Russia")
    GridView1.DataSource = dt
    GridView1.DataBind()
End Sub

Detail

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Me.Page.PreviousPage IsNot Nothing Then
        Dim rowIndex As Integer = Integer.Parse(Request.QueryString("RowIndex"))
        Dim GridView1 As GridView = CType(Me.Page.PreviousPage.FindControl("GridView1"), GridView)
        Dim row As GridViewRow = GridView1.Rows(rowIndex)
        lblId.Text = GridView1.DataKeys(rowIndex).Value.ToString()
        lblName.Text = row.Cells(0).Text
        lblCountry.Text = row.Cells(1).Text
    End If
End Sub

Screenshot