Hi,
i have an issue with maintaining state of template column textbox on paging in radgrid.
I am storing the data in session and then on need datasource event trying to get the data again from session.
But this does not help.
Please help me its urgent issue.please refer code below-
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<telerik:RadGrid ID="grChecklist1" runat="server" AutoGenerateColumns="false"
onneeddatasource="grChecklist1_NeedDataSource"
onpageindexchanged="grChecklist1_PageIndexChanged" >
<MasterTableView AllowPaging="true" AutoGenerateColumns="false" PageSize="5">
<Columns>
<telerik:GridTemplateColumn DataField="Number" HeaderText="Number" Visible="true">
<ItemTemplate>
<asp:TextBox ID="txtNumber" runat="server" Text='<%#Bind("Number")%>'/>
</ItemTemplate>
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn DataField="TaskDescription" HeaderText="TaskDescription" Visible="true">
<ItemTemplate>
<asp:TextBox ID="txtTaskDescription" runat="server" Text='<%#Bind("TaskDescription")%>' />
</ItemTemplate>
</telerik:GridTemplateColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
LoadDetails();
}
}
private void LoadDetails()
{
DataTable dt = new DataTable();
dt.Columns.Add("Number",typeof(string));
dt.Columns.Add("TaskDescription", typeof(string));
dt.Rows.Add("1", "task1");
dt.Rows.Add("2", "task2");
dt.Rows.Add("3", "task3");
dt.Rows.Add("4", "task4");
dt.Rows.Add("5", "task5");
dt.Rows.Add("6", "task6");
dt.Rows.Add("7", "task7");
//grChecklist.DataSource = dt;
// grChecklist.DataBind();
Session["dt"] = dt;
}
private void RefreshSessionState()
{
DataTable dt = new DataTable();
dt.Columns.Add("Number", typeof(string));
dt.Columns.Add("TaskDescription", typeof(string));
foreach (GridDataItem item in grChecklist1.Items)
{
string number=(item.FindControl("txtNumber") as TextBox).Text;
string task = (item.FindControl("txtTaskDescription") as TextBox).Text;
dt.Rows.Add(number,task);
}
if (Session["dt"] != null)
Session.Remove("dt");
Session["dt"] = dt;
}
protected void grChecklist1_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)
{
// RefreshSessionState();
grChecklist1.DataSource = (DataTable)Session["dt"];
}
protected void grChecklist1_PageIndexChanged(object sender, GridPageChangedEventArgs e)
{
grChecklist1.AllowPaging = false;
grChecklist1.Rebind();
// RefreshSessionState();
grChecklist1.CurrentPageIndex = e.NewPageIndex;
grChecklist1.AllowPaging = true;
grChecklist1.Rebind();
}
}