Search GridView Disappears On Navigate Button Click?
Jun 22, 2015
On my Form I have 2 gridviews namely; gvCRSearch (that displays search results) and gvCRView (that displays all the change requests raised).. Now, when the records are more than 10 in gvCRSearch it automatically creates a navigation number i.e., 1 2 3 Same thing happens to gvCRView
What is wrong is that when I click the navigation i.e., ( for example 2) on gvCRSearch
1) the gvCrSearch becomes visible = false
2) the gvCRView if it has a navigation number is moved to 2
So the effect is seen the next view (gvCRView) and the gridview (gvCRSearch becomes invisible)
I have a small problem I am returning some data from a query and have allowed paging, however when I click on the next button to view the following page the gridview disappears.
My datasource is specified in the code behind:
<asp:Panel ID="dtpanel" runat="server" Visible="False"> <asp:GridView ID="grddetails" runat="server" AutoGenerateColumns="False" AllowPaging="True" OnPageIndexChanging="grddetails_SelectedIndexChanged" ViewStateMode="Enabled" onselectedindexchanged="grddetails_SelectedIndexChanged" AllowSorting="True" > <Columns> <asp:BoundField DataField="Col1" HeaderText="Col1" SortExpression="Col1" /> <asp:BoundField DataField="Col2" HeaderText="Col2" SortExpression="Col2" /> <asp:BoundField DataField="Col3" HeaderText="Col3" SortExpression="Col3" /> <asp:BoundField DataField="Col4" HeaderText="Col4" SortExpression="Col4" /> <asp:BoundField DataField="Col5" HeaderText="Col5" SortExpression="Col5" /> <asp:BoundField DataField="Col6" HeaderText="Col6" SortExpression="Col6" /> </Columns> </asp:GridView> </asp:Panel> using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data; using System.Data.SqlClient; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void GridView2_SelectedIndexChanged(object sender, GridViewCommandEventArgs e) { int y = Convert.ToInt32(e.CommandArgument); Control control = GridView2.Rows[y].Cells[0].Controls[0]; LinkButton btn = control as LinkButton; string qval = btn.Text; string query = "SELECT * FROM Table WHERE Col LIKE '%" + qval + "%'"; string connectionString = @"Data Source=servername;Initial Catalog=dbname;Integrated Security=True"; SqlConnection accessConnection = new SqlConnection(connectionString); SqlCommand accessCommand = new SqlCommand(query, accessConnection); SqlDataAdapter grddetailsDataAdapter = new SqlDataAdapter(accessCommand); DataTable grddetailsDataTable = new DataTable("Table"); grddetailsDataAdapter.Fill(grddetailsDataTable); int dataTableRowCount = grddetailsDataTable.Rows.Count; if (dataTableRowCount > 0) { grddetails.DataSource = grddetailsDataTable; grddetails.DataBind(); } dtpanel.Visible = true; } protected void GridView1_SelectedIndexChanged(object sender, GridViewCommandEventArgs e) { int w = Convert.ToInt32(e.CommandArgument); Control control = GridView1.Rows[w].Cells[0].Controls[0]; LinkButton btn = control as LinkButton; string qval2 = btn.Text; Label1.Text = btn.Text; string query = "SELECT * FROM Table WHERE Col LIKE '%" + qval2 + "%'"; string connectionString = @"Data Source=servername;Initial Catalog=dbname;Integrated Security=True"; SqlConnection accessConnection = new SqlConnection(connectionString); SqlCommand accessCommand = new SqlCommand(query, accessConnection); SqlDataAdapter grddetailsDataAdapter = new SqlDataAdapter(accessCommand); DataTable grddetailsDataTable = new DataTable("Table"); grddetailsDataAdapter.Fill(grddetailsDataTable); grddetails.DataSource = grddetailsDataTable; grddetails.DataBind(); dtpanel.Visible = true; } protected void grddetails_SelectedIndexChanged(object sender, GridViewPageEventArgs e) { DataTable dataTable = grddetails.DataSource as DataTable; grddetails.PageIndex = e.NewPageIndex; grddetails.DataBind(); dtpanel.Visible = true; } }
On my Search page, I have a search textbox, four drop-down lists and a "Search" button. If I use only the drop-down lists and click the "Search" button, results are immediately returned. However, if I enter text into the textbox and click the "Search" button, nothing happens until I click the "Search" button a SECOND time.The processes that occur for the latter scenario are as follows:Text entered into textbox, and Search button clicked:On FIRST click attempt:
1. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Search.aspx is called
2. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Main.Master.vb is called
3. Process stops! No results
On SECOND click attempt:
1. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Search.aspx is called
2. Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load for Main.Master.vb is called
3. Protected Sub SearchSubmit(ByVal sender As Object, ByVal e As EventArgs) Handles btSearch.Click for Search.aspx is called
4. Search continues and completes.
So, why will the 3rd step not kick in until clicking Search for a second time
[Code]....
If I reach this last Sub, everything else beyond this works fine.
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Yesterday (Thursday Sep 10th 2010) I was happy to have a TabContainer working fine on a simple page as im learning to use it.
On the page was:
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[Code]....
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Below is the button click code.
private void AddNewRow() { int rowIndex = 0; if (ViewState["CurrentTable"] != null) { dtCurrentTable = (DataTable)ViewState["CurrentTable"]; DataRow drCurrentRow = null; if (dtCurrentTable.Rows.Count > 0)
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