This is a migrated thread and some comments may be shown as answers.

How to maintain the state in radgrid

3 Answers 119 Views
Grid
This is a migrated thread and some comments may be shown as answers.
utchi
Top achievements
Rank 1
utchi asked on 25 Sep 2009, 02:12 PM
Hi,

I am using radgrid for my application. In my application, I have changed the column position by drag-drop in runtime.

After refreshing the page or radgrid, the column was changed to its old position.

How to maintain its state?.

Please give any suggestions.

Thanks in advance.

Regards
Mahali

3 Answers, 1 is accepted

Sort by
0
Pavlina
Telerik team
answered on 28 Sep 2009, 09:26 AM
Hi Mahali,

How to maintain the order of the columns of your RadGrid across postbacks you can learn from the following forum thread which elaborates on this matter:
Maintain Column Order On Postback

Kind regards,
Pavlina
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
0
S
Top achievements
Rank 1
answered on 15 Nov 2014, 11:29 AM
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();
        }
    }
0
Pavlina
Telerik team
answered on 17 Nov 2014, 04:44 PM
Hello,

The answer of this question is available here:
http://www.telerik.com/forums/radgrid-template-column-maintain-state-on-paging

Regards,
Pavlina
Telerik
 

Check out the Telerik Platform - the only platform that combines a rich set of UI tools with powerful cloud services to develop web, hybrid and native mobile apps.

 
Tags
Grid
Asked by
utchi
Top achievements
Rank 1
Answers by
Pavlina
Telerik team
S
Top achievements
Rank 1
Share this question
or