Unplanned
Last Updated: 07 Mar 2019 12:03 by ADMIN

When virtualization is enabled for RadGrid, NeedDataSource is called at every Post back with RebindReason = ExplicitRebind, regardless of the event target.

Steps to reproduce:

Use the following Code snippets for the runnable sample and debug the NeedDataSource event while doing post backs using other controls. For instance, you can use the RadButton1 from these snippets to make a standard Post Back.

Markup

        <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
        </telerik:RadAjaxManager>

        <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default"></telerik:RadAjaxLoadingPanel>
        
        <telerik:RadButton runat="server" ID="RadButton1" Text="Postback" AutoPostBack="true" />

        <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="false" Width="800px" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView AutoGenerateColumns="true" DataKeyNames="OrderID">
            </MasterTableView>
            <ClientSettings>
                <Scrolling AllowScroll="true" />
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="500" ItemsPerView="200" RetrievedItemsPerRequest="200" LoadingPanelID="RadAjaxLoadingPanel1" />
            </ClientSettings>
        </telerik:RadGrid>


C# 

    protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
    {
        RadGrid1.DataSource = OrdersTable();
    }

    private DataTable OrdersTable()
    {
        DataTable dt = new DataTable();

        dt.Columns.Add(new DataColumn("OrderID", typeof(int)));
        dt.Columns.Add(new DataColumn("OrderDate", typeof(DateTime)));
        dt.Columns.Add(new DataColumn("Freight", typeof(decimal)));
        dt.Columns.Add(new DataColumn("ShipName", typeof(string)));
        dt.Columns.Add(new DataColumn("ShipCountry", typeof(string)));

        dt.PrimaryKey = new DataColumn[] { dt.Columns["OrderID"] };

        for (int i = 0; i < 10000; i++)
        {
            int index = i + 1;

            DataRow row = dt.NewRow();

            row["OrderID"] = index;
            row["OrderDate"] = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 0).AddHours(index);
            row["Freight"] = index * 0.1 + index * 0.01;
            row["ShipName"] = "Name " + index;
            row["ShipCountry"] = "Country " + index;

            dt.Rows.Add(row);
        }

        return dt;
    }

Unplanned
Last Updated: 26 Aug 2018 09:14 by ADMIN
With form decorator the checkboxes jump a bit to the left when cell is opened: https://www.screencast.com/t/5HwXW6kgVhb

Without form decorator they get centered because of the 100% width they get https://www.screencast.com/t/oxc75Bu6lM

It comes from the combination of two things:
- by default, the grid cells have a left padding (as well as padding to the other sides, but that's irrelevant now)
- the batch editing container does not have left padding so the editable element can better align with the text in the general case (textboxes and other editable elements usually have some left padding). With a checkbox there is no textual input, though, and so it appears to shift to the left because the left-padding of the cell is removed by the batch editing.

Workaround:

		<style>
			/* note: the margins may vary in different skins, inspect the rendering if there is a  */

			/* for form decorator */
			html .RadGrid td.rgBatchCurrent .rfdCheckboxUnchecked,
			html .RadGrid td.rgBatchCurrent .rfdCheckboxChecked,
			html .RadGrid td.rgBatchCurrent .RadCheckBoxList {
				margin-left: 12px;
			}

			/* if no form decorator */
			html .RadGrid td.rgBatchCurrent input[type='checkbox'] {
				width: auto;
				margin-left: 16px;
			}


			/* in case you have radio buttons even though they are not a supported editable control with batch editing*/
			/* for form decorator */
			html .RadGrid td.rgBatchCurrent .rfdRadioUnchecked,
			html .RadGrid td.rgBatchCurrent .rfdRadioChecked,
			html .RadGrid td.rgBatchCurrent .RadRadioButtonList{
				margin-left: 12px;
			}

			/* if no form decorator */
			html .RadGrid td.rgBatchCurrent input[type='radio'] {
				width: auto;
				margin-left: 16px;
			}
		</style>

Unplanned
Last Updated: 02 Jan 2020 16:43 by ADMIN
Created by: Grant
Comments: 1
Category: Grid
Type: Bug Report
0
If exporting a sorted RadGrid to  Excel XLSX a white space is prepended to the header text in the output file
Unplanned
Last Updated: 02 Jan 2020 16:43 by ADMIN
Created by: David Hassan
Comments: 1
Category: Grid
Type: Bug Report
0

To replicate the problem:

  1. Create RadGrid and bind it a datasource
  2. Set ClientSettings - Selecting - AllowRowSelect to true
  3. Set ClientSettings - EnablePostBackOnRowClick to true
  4. Add a GridEditCommandColumn or a ButtonColumn with Edit/Save/Cancel CommandNames
  5. Enable AJAX for the Grid
  6. Run the application in FireFox

Clicking on the Edit button fires the RowClick event of the Grid instead of Edit/Save/Cancel.

Unplanned
Last Updated: 01 Aug 2019 18:12 by ADMIN
When you have both a Detail Item Template and a Detail Table inside a Grid and then when you show a hidden column using the context menu it only shows for the first row and the grid doesn't display properly.  It also throws the javasecript error "Unable to get property '_getVisibleColumnsCount' of undefined or null reference".
Unplanned
Last Updated: 02 Jan 2020 16:32 by ADMIN

Issue seems to happen with RadGrid with Bootstrap Skin, RenderMode Lightweight when RequireFieldValidator is enabled in combination with Batch Editing.

Unexpected look (Bootstrap skin):

Other skins seems to have it right.

Expected look (Default skin):

Expected look (Silk skin):


 

Unplanned
Last Updated: 23 Dec 2019 09:27 by ADMIN

I have a Telerik RadGrid, and there is a date column on the grid layout. The date format I am using to display date values is "dd/MM/yyyy". Then, I export that grid data to Excel file with GridExcelExportFormat.Biff type. The problem here is when I open the newly exported Excel file, the date format is changed to "MM/dd/yyyy". 

I want to keep displaying my date format "dd/MM/yyyy" in the Excel file after exporting the grid data.

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