Completed
Last Updated: 17 Jun 2015 16:07 by Svetlin
Completed
Last Updated: 04 Jan 2013 09:09 by ADMIN
Work Around:
1. Create custom text box editor.

        public class MyTextBoxEditor : RadTextBoxEditor
        {
            private bool isValueChanging = false;
            private int selectionStart = -1;

            public MyTextBoxEditor()
         
Completed
Last Updated: 27 May 2015 08:07 by ADMIN
RadGridView - current row changes even when canceling the RowValidating event.

Code to reproduce:
            public Form1()
            {
                InitializeComponent();

                radGridView1.AutoGenerateColumns = false;
                radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;

                radGridView1.Columns.Add(new GridViewTextBoxColumn("A", "A"));
                radGridView1.Columns.Add(new GridViewTextBoxColumn("B", "B"));
                radGridView1.Columns.Add(new GridViewTextBoxColumn("C", "C"));

                radGridView1.Rows.Add("A", "AA", "AAA");
                radGridView1.Rows.Add("B", "BB", "BBB");
                radGridView1.Rows.Add("C", "CC", "CCC");
                radGridView1.Rows.Add("D", "DD", "DDD");
                radGridView1.Rows.Add("E", "EE", "EEE");
                radGridView1.Rows.Add("F", "FF", "FFF");
                radGridView1.Rows.Add("G", "GG", "GGG");

                radGridView1.RowValidating += new RowValidatingEventHandler(radGridView1_RowValidating);

            }

            void radGridView1_RowValidating(object sender, RowValidatingEventArgs e)
            {
                if (e.Row.Cells["B"].Value.ToString() == "BB")
                {
                    e.Cancel = true;
                }
            }


Steps to reproduce: 

1. Go to cell with value "BB"
2. NOT in edit mode press down arrow key 2-3 times
3. Change text to "AA"
4. Press Tab several times

Work around: 
Use custom navigator:

radGridView1.GridViewElement.Navigator = new MyGridNavigator();


            public class MyGridNavigator : BaseGridNavigator
            {
                private static readonly FieldInfo EnumeratorFieldInfo = typeof(BaseGridNavigator).GetField("enumerator", BindingFlags.NonPublic | BindingFlags.Instance);

                protected GridTraverser enumerator
                {
                    get { return EnumeratorFieldInfo.GetValue(this) as GridTraverser; }
                }

                protected override bool SelectCore(GridViewRowInfo row, GridViewColumn column)
                {
                    bool result = base.SelectCore(row, column);

                    if (!result)
                    {
                        enumerator.GoToRow(this.GridViewElement.CurrentRow);
                    }

                    return result;
                }
            }
Completed
Last Updated: 20 Feb 2014 15:09 by ADMIN
FIX. RadGridView - cursor does not work properly, when cursor has value "Cursors.SizeWE" and mouse is moving over GroupPanelElement.

Steps to reproduce:
1. On a gridview make sure that a column in grouped.
2. Place your mouse on a column split just below the grouped column.
3. The cursor icon changes to a SizeWE icon to let you know that you can resize the column, This is normal.
4. Now, move the mouse (with the cursor icon = SizeWE) to the grouped column just above.
5. Now the cusor gets stucked with this SizeWE icon and never goes away on this grid. Wathever you do now the icon stays showing as a SizeWE icon.

Work Around - create custom grid behavior and override OnMouseMove method.

    public class CustomGridBehavior : BaseGridBehavior 
    {
        public override bool OnMouseMove(MouseEventArgs e)
        {
             base.OnMouseMove(e);

             GridTableElement table = this.GetGridTableElementAtPoint(e.Location);

             if (table == null)
             {
                 this.GridViewElement.ElementTree.Control.Cursor = Cursors.Default;
                 return false;
             }

             return false;
        }
    }
Completed
Last Updated: 01 Jun 2015 07:09 by ADMIN
RadGridView - You cannot select cells only from Pinned Columns if under them there is unpinned one.

Steps to reproduce:
1. Set SelectionMode property of RadGridView to GridViewSelectionMode.CellSelect.
2. Create 3 left pinned columns
3. Create several unpinned columns.
4. Scroll horizontal scroll bar to hide several unpinned columns under the pinned.
5. Try to select only pinned cells with the selection rectangle.
Completed
Last Updated: 11 Feb 2014 13:53 by ADMIN
You should use the ticket project in order to reproduce the issue.
Completed
Last Updated: 31 Mar 2014 09:22 by Jesse Dyck
To reproduce: 
-add RadGridView with 2 columns - ID and Name; 
-add RadButton and use the following code:
public Form1() { InitializeComponent(); AddSelfReferencingColumns(grid, "Id", "Parent.Id"); this.grid.DataSource = TestDataGenerator.GenerateTestData(); } public void AddSelfReferencingColumns(RadGridView grid, string childKey, string parentKey) { GridViewTextBoxColumn col1 = new GridViewTextBoxColumn("hiddenColumnId", childKey); GridViewTextBoxColumn col2 = new GridViewTextBoxColumn("hiddenColumnParentId", parentKey); grid.MasterTemplate.Columns.Add(col1); grid.MasterTemplate.Columns.Add(col2); grid.Columns["hiddenColumnId"].IsVisible = false; grid.Columns["hiddenColumnParentId"].IsVisible = false; grid.Relations.AddSelfReference(grid.MasterTemplate, "hiddenColumnId", "hiddenColumnParentId"); } void refreshButton_Click(object sender, System.EventArgs e) { this.grid.DataSource = TestDataGenerator.GenerateTestData(); } class TestDataGenerator { public static IList<TestObject> GenerateTestData() { IList<TestObject> result = new List<TestObject>(); TestObject top = new TestObject { Id = 1, Name = "Top" }; result.Add(top); for (int i = 1; i < 4; i++) { TestObject firstChild = new TestObject() { Id = 10 * i, Name = string.Format("First level child {0}", i), Parent = top }; result.Add(firstChild); for (int j = 1; j < 10; j++) { TestObject secondChild = new TestObject() { Id = 10 * i + j, Name = string.Format("Second level child {0}", j), Parent = firstChild }; result.Add(secondChild); } } return result; } } class TestObject { public long Id { get; set; } public string Name { get; set; } public TestObject Parent { get; set; } }

Steps to reproduce: 1.Type in Name column filter i.e. "F" 2.Press refresh button. The grid is empty, even though the new list contains the same data (different objects).

Workaround: void refreshButton_Click(object sender, System.EventArgs e) { FilterDescriptorCollection filters = new FilterDescriptorCollection(); foreach (FilterDescriptor filterItem in this.grid.FilterDescriptors) { filters.Add(filterItem); } this.grid.DataSource = TestDataGenerator.GenerateTestData(); this.grid.FilterDescriptors.Clear(); foreach (FilterDescriptor filter in filters) { this.grid.FilterDescriptors.Add(filter); } }
Completed
Last Updated: 11 Feb 2014 15:55 by ADMIN
ADMIN
Created by: Stefan
Comments: 0
Category: GridView
Type: Bug Report
5
To reproduce: 
For i = 0 To Me.RadGridView1.Columns.Count - 1
            Me.RadGridView1.Columns(i).AutoSizeMode = Telerik.WinControls.UI.BestFitColumnMode.HeaderCells
Completed
Last Updated: 14 Feb 2012 08:36 by ADMIN
ADD. RadGridView - add support for scrolling the grid while dragging in SelectionMode = CellSelect
Completed
Last Updated: 28 May 2015 09:57 by ADMIN
A user should be able to disable executing any of the cut/copy/paste (ctrl+x, ctrl+c, ctrl+v) commands.
Completed
Last Updated: 28 Feb 2012 04:19 by ADMIN
Steps to reproduce:

1. Add a RadGridView to a form and fill it with data so there would be a vertical scroll bar
2. Set AutoSizeRows to true
3. Run the project and call RadGridView.PrintPreview() method
4. You will see that only the rows that are visible in the RadGirdView or have been scrolled to will have a correct height.
Unplanned
Last Updated: 25 Apr 2024 13:11 by Ashley
It appears that this scenario is not handled properly in our exporter. Consider the case where you have two templates that use view definition. 

The view definition from the second template is not exported at all.
Unplanned
Last Updated: 23 Apr 2024 12:12 by ADMIN
The Excel-like filter in the SelfReference hierarchy is slow.
Completed
Last Updated: 10 Mar 2025 14:41 by ADMIN
Release 2025.1.310 (Preview)
This behavior is observed when referencing 2025.1.211 version of Telerik UI for WinForms controls.
Completed
Last Updated: 21 May 2015 09:19 by ADMIN
If you set the MinWidth and MaxWidth to a column and then set AutoSizeColumnMode to Fill (all this in the form constructor) a gap will appear between the columns.

Workaround: set the Fill before the MinWidth and MaxWidth and to do all these operations on Load.
Duplicated
Last Updated: 12 May 2021 12:28 by ADMIN
Steps to reproduce:

1. Create a form
2. Set its Localization property to true.
3. Add RadGridView to the form
4. Add 3 GridViewTextBoxColumn instances at design-time
5. Change the Language of the form to Polish
6. The variable names of the columns are changed (gridViewTextBoxColumn1 to gridViewTextBoxColumn4, gridViewTextBoxColumn2 to gridViewTextBoxColumn5, gridViewTextBoxColumn3 to gridViewTextBoxColumn6)
Completed
Last Updated: 07 Mar 2014 07:24 by ADMIN
The row's MaxHeight property does not affect the row sizing when the AutoSizeRows property of RadGridView is enabled.

Workaround:
Use the following data row:

public class MyGridDataRowElement : GridDataRowElement
{
protected override Type ThemeEffectiveType
{
get
{
return typeof(GridDataRowElement);
}
}
protected override System.Drawing.SizeF MeasureCore(System.Drawing.SizeF availableSize)
{
float maxHeight = this.RowInfo.MaxHeight;
bool isAutoSize = this.GridViewElement.AutoSize && this.RowInfo.MaxHeight > 0 && availableSize.Height == float.PositiveInfinity;
SizeF size = base.MeasureCore(availableSize);

if (isAutoSize && size.Height > maxHeight)
{
availableSize.Height = maxHeight;
size = base.MeasureCore(availableSize);
}

return size;
}
}

here is how to replace it and set the max height:
void radGridView1_RowFormatting(object sender, RowFormattingEventArgs e)
{
e.RowElement.RowInfo.MaxHeight = 32;
}

void radGridView1_CreateRow(object sender, GridViewCreateRowEventArgs e)
{
if (e.RowType == typeof(GridDataRowElement))
{
e.RowType = typeof(MyGridDataRowElement);
}
}
Completed
Last Updated: 10 Sep 2015 13:14 by Jesse Dyck
The performance of excel-like filtering when you have more than 5000+ row in RadGridView.
Completed
Last Updated: 19 Jun 2015 12:42 by ADMIN
ADD. RadGridView should support filtering operations when custom TypeConverters are used.
Completed
Last Updated: 11 Feb 2014 15:54 by ADMIN
IMPROVE. RadGridView - add ability to change and customize the font (bold, italic, etc) in the ConditionalFormattingForm