Hi RichardSa,
Unfortunately, there is no way to detect that Server.Transfer() was called. This means that UpdatePanel can't do anything intelligent when someone calls Server.Transfer().
The response sent back to the client is the HTML markup from the page to which you transferred.
Since its HTML and not the special format, it can't be parsed.
So you have to use Response.Write().
If you want to use Server.Transfer() you have to remove the UpdatePanel.
Refer below example.
HTML
Default
<asp:GridView ID="GridView1" runat="server" GridLines="None" AllowPaging="true" HeaderStyle-ForeColor="#eeeeee" HeaderStyle-Font-Bold="true" HeaderStyle-BackColor="#224f6d"
AutoGenerateColumns="false" OnSelectedIndexChanged="OnSelectedIndexChanged" OnPageIndexChanging="OnPageIndexChanging" OnRowDataBound="OnRowDataBound" class="table" Width="100%"
HeaderStyle-HorizontalAlign="left" RowStyle-HorizontalAlign="Left" DataKeyNames="ContactName">
<Columns>
<asp:BoundField DataField="ContactName" HeaderText="Contact Name" />
<asp:BoundField DataField="City" HeaderText="City" ReadOnly="true" />
<asp:BoundField DataField="Country" HeaderText="Country" />
</Columns>
</asp:GridView>
<hr />
<div style="float: left; font-size: 10pt; margin-right: 1%; font-weight: 600;">
Page
<asp:Label ID="lblPageIndex" runat="server" Text="Label" />
of
<asp:Label ID="lblTotalPage" runat="server" />
(<asp:Label ID="lblTotal" runat="server" />
Election(s))
<div class="dvPager">
<asp:Repeater ID="rptPager" runat="server">
<ItemTemplate>
<asp:LinkButton ID="lnkPage" runat="server" Text='<%#Eval("Text") %>' CommandArgument='<%# Eval("Value") %>'
CssClass='<%# Convert.ToBoolean(Eval("Enabled")) ? "page_enabled" : "page_disabled" %>'
OnClick="Page_Changed" OnClientClick='<%# !Convert.ToBoolean(Eval("Enabled")) ? "return false;" : "" %>'></asp:LinkButton>
</ItemTemplate>
</asp:Repeater>
</div>
</div>
Summary
<asp:Label ID="ContactName" runat="server" Text=""></asp:Label>
<asp:Label ID="City" runat="server" Text=""></asp:Label>
<asp:Label ID="County" runat="server" Text=""></asp:Label>
Code
Default
private int PageSize = 4;
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.ElectionPage(1);
}
}
private void ElectionPage(int pageIndex)
{
using (SqlConnection con = new SqlConnection("Data Source = 192.168.0.10\\SQL2014;DataBase=Northwind;UID=sa;PWD=pass@123;"))
{
using (SqlCommand cmd = new SqlCommand("Customers_GetCustomersPageWise", con))
{
cmd.CommandType = CommandType.StoredProcedure;
//cmd.Parameters.AddWithValue("@Name", userlabel.Text.Trim());
cmd.Parameters.AddWithValue("@PageIndex", pageIndex);
cmd.Parameters.AddWithValue("@PageSize", PageSize);
cmd.Parameters.Add("@RecordCount", SqlDbType.Int, 4);
cmd.Parameters["@RecordCount"].Direction = ParameterDirection.Output;
con.Open();
using (SqlDataAdapter sda = new SqlDataAdapter())
{
cmd.Connection = con;
sda.SelectCommand = cmd;
using (DataTable dt = new DataTable())
{
sda.Fill(dt);
con.Close();
GridView1.DataSource = dt;
GridView1.DataBind();
int recordCount = Convert.ToInt32(cmd.Parameters["@RecordCount"].Value);
this.PopulatePager(recordCount, pageIndex);
}
}
}
}
}
private void PopulatePager(int recordCount, int currentPage)
{
double dblPageCount = (double)((decimal)recordCount / (decimal)PageSize);
int pageCount = (int)Math.Ceiling(dblPageCount);
List<ListItem> pages = new List<ListItem>();
if (pageCount > 0)
{
if (currentPage != 1)
{
pages.Add(new ListItem("Prev", (currentPage - 1).ToString()));
}
if (pageCount < 4)
{
for (int i = 1; i <= pageCount; i++)
{
pages.Add(new ListItem(i.ToString(), i.ToString(), i != currentPage));
}
}
else if (currentPage < 4)
{
for (int i = 1; i <= 4; i++)
{
pages.Add(new ListItem(i.ToString(), i.ToString(), i != currentPage));
}
pages.Add(new ListItem("...", (currentPage).ToString(), false));
}
else if (currentPage > pageCount - 4)
{
pages.Add(new ListItem("...", (currentPage).ToString(), false));
for (int i = currentPage - 1; i <= pageCount; i++)
{
pages.Add(new ListItem(i.ToString(), i.ToString(), i != currentPage));
}
}
else
{
pages.Add(new ListItem("...", (currentPage).ToString(), false));
for (int i = currentPage - 2; i <= currentPage + 2; i++)
{
pages.Add(new ListItem(i.ToString(), i.ToString(), i != currentPage));
}
pages.Add(new ListItem("...", (currentPage).ToString(), false));
}
if (currentPage != pageCount)
{
pages.Add(new ListItem("Next", (currentPage + 1).ToString()));
}
}
rptPager.DataSource = pages;
rptPager.DataBind();
lblPageIndex.Text = currentPage.ToString();
lblTotalPage.Text = ((recordCount / PageSize) + ((recordCount % PageSize) > 0 ? 1 : 0)).ToString();
lblTotal.Text = recordCount.ToString();
}
protected void Page_Changed(object sender, EventArgs e)
{
int pageIndex = int.Parse((sender as LinkButton).CommandArgument);
this.ElectionPage(pageIndex);
}
protected void OnPageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
this.ElectionPage(1);
}
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.Style.Add("cursor", "pointer");
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("summary.aspx?RowIndex=" + row.RowIndex);
}
}
}
Summary
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];
ContactName.Text = Gridview1.DataKeys[rowIndex].Value.ToString();
}
}
Screenshot
