or
4 answers
101 views
Hello everybody.
-I'm new with telerik , I use Winforms q2 2014 sp1 , and I have a GridView ,that contains three column ,CheckBowColumn,DateTimeColumn and ComboBoxColumn , I want that when I Check a CheckBox the Columns Date and Combo be enabled , else the Text of Date and Combo cleared and disabled.
How can I make this please ?? and thank's for help :)
-I'm new with telerik , I use Winforms q2 2014 sp1 , and I have a GridView ,that contains three column ,CheckBowColumn,DateTimeColumn and ComboBoxColumn , I want that when I Check a CheckBox the Columns Date and Combo be enabled , else the Text of Date and Combo cleared and disabled.
How can I make this please ?? and thank's for help :)
1 answer
132 views
i want to show no of columns in gridviewmulticombox.how to show?
Ralitsa
Telerik team
answered
on
05 Dec 2014
1 answer
88 views
Hi Telerik,
Is there a way to consult the "old What is New" webpage for older release of Telerik ?
The full log in release is history is really complete.
But if you have jumped one or two version (or when you update an old project) and just want to have a quick look to the new functionality the What's New is faster.
Is there a way to consult the "old What is New" webpage for older release of Telerik ?
The full log in release is history is really complete.
But if you have jumped one or two version (or when you update an old project) and just want to have a quick look to the new functionality the What's New is faster.
Stefan
Telerik team
answered
on
05 Dec 2014
1 answer
81 views
Hello,
I'm trying to figure out how to use the Telerik.WinControls.Data.ObservableCollection.CollectionChanging event to detect when a user moves columns in the grid. How can you do this in Visual Basic.NET? I need to do this so I can detect if we need to save the layout for that user to the database or not.
Kind regards,
David
I'm trying to figure out how to use the Telerik.WinControls.Data.ObservableCollection.CollectionChanging event to detect when a user moves columns in the grid. How can you do this in Visual Basic.NET? I need to do this so I can detect if we need to save the layout for that user to the database or not.
Kind regards,
David
Stefan
Telerik team
answered
on
05 Dec 2014
4 answers
449 views
Hello,
I'm using a GridViewComboBoxColumn with DropDownStyle = DropDown, but the underlaying RadDropDownListEditor don't assing the typed text from text area into cell value. Only entries from the list are placed in cell value. Datasource behind the combobox is a List<string>. I want do two things:
a) Get the editor working to assing also value not placed in list to cell value
b) Get text from editor text area to be able checking agains data list and adding to list for next use of editor
Regards from Leipzig
Holger Boskugel
I'm using a GridViewComboBoxColumn with DropDownStyle = DropDown, but the underlaying RadDropDownListEditor don't assing the typed text from text area into cell value. Only entries from the list are placed in cell value. Datasource behind the combobox is a List<string>. I want do two things:
a) Get the editor working to assing also value not placed in list to cell value
b) Get text from editor text area to be able checking agains data list and adding to list for next use of editor
Regards from Leipzig
Holger Boskugel
Michael Bakker
Top achievements
Rank 2
Rank 2
answered
on
05 Dec 2014
2 answers
101 views
How can I do this whit RadGridView:
For i = 0 To DataGridView.Rows.Count() - 1
DataGridView.Rows(i).Cells(18).ToolTipText = "Target: " & DataGridView.Rows(i).Cells(24).Value
Next
Regrads Jan
For i = 0 To DataGridView.Rows.Count() - 1
DataGridView.Rows(i).Cells(18).ToolTipText = "Target: " & DataGridView.Rows(i).Cells(24).Value
Next
Regrads Jan
Dimitar
Telerik team
answered
on
05 Dec 2014
5 answers
135 views
With the latest release of the telerik controls the Radbutton has a weird UI glitch when the TerliekMetroBlue theme is applied.
Image 1 and Image 2 has the Button enabled at design time and is working as expected.
Image 3 and Image 4 has the Button disabled at design time and is not working as expected.
Image 1 and Image 2 has the Button enabled at design time and is working as expected.
Image 3 and Image 4 has the Button disabled at design time and is not working as expected.
Justin
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Rank 2
Rank 2
answered
on
04 Dec 2014
2 answers
312 views
I just upgraded to Telerik UI for WinForms 2014 from 2010.
I have an application with about 40 grids we build dynamically that have checkbox columns. Many of the tables feeding these grids have NULL values for the bit column. When applying a filter to a grid that has NULL values in the CheckBox column I get an error. If I modify my query using ISNULL(fieldname, 0) AS fieldname I am able to filter, but I can no longer update the bit field for that CheckBox column because it is now aliased.
Before the upgrade the filtering worked even if there were NULL values. What can I do to get both filtering and update capability on CheckBox columns that reference a bit column that contains NULL values. The underlying data cannot be changed to eliminate NULL values because a NULL represents a state other than true or false when handling data in our stored procedures.
This is the code used to create the CheckBox columns:
ElseIf objTab.Columns(i).DataType.Name = "Boolean" Then
Dim col As GridViewCheckBoxColumn = New GridViewCheckBoxColumn
col.Name = colname
col.FieldName = colname
col.HeaderText = colname
col.ReadOnly = Not (pCanWrite)
objGrd.Columns.Add(col)
I have an application with about 40 grids we build dynamically that have checkbox columns. Many of the tables feeding these grids have NULL values for the bit column. When applying a filter to a grid that has NULL values in the CheckBox column I get an error. If I modify my query using ISNULL(fieldname, 0) AS fieldname I am able to filter, but I can no longer update the bit field for that CheckBox column because it is now aliased.
Before the upgrade the filtering worked even if there were NULL values. What can I do to get both filtering and update capability on CheckBox columns that reference a bit column that contains NULL values. The underlying data cannot be changed to eliminate NULL values because a NULL represents a state other than true or false when handling data in our stored procedures.
This is the code used to create the CheckBox columns:
ElseIf objTab.Columns(i).DataType.Name = "Boolean" Then
Dim col As GridViewCheckBoxColumn = New GridViewCheckBoxColumn
col.Name = colname
col.FieldName = colname
col.HeaderText = colname
col.ReadOnly = Not (pCanWrite)
objGrd.Columns.Add(col)
Dess | Tech Support Engineer, Principal
Telerik team
answered
on
04 Dec 2014
2 answers
272 views
I have a GridView that is bound to a binding list
BindingList<DataElementMap> DataElementMaps { get; set; }
mappingsGridView.DataSource = DataElementMaps;
I am adding a menu item to the Context Menu using the following
This works fine until I clear the data bound list. (i.e. DataElementMaps.Clear(); )
After a clear is executed the above code throws the following exception
System.ArgumentException occurred
Message=Cannot remove the specified item because it was not found in the specified Collection.
Source=mscorlib
StackTrace:
at System.Collections.CollectionBase.System.Collections.IList.Remove(Object value)
at Telerik.WinControls.RadElementCollection.CheckElementAlreadyAdded(RadElement element)
at Telerik.WinControls.RadElementCollection.OnInsert(Int32 index, Object value)
at System.Collections.CollectionBase.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.WinControls.RadItemOwnerCollection.OnInsertComplete(Int32 index, Object value)
at System.Collections.CollectionBase.System.Collections.IList.Add(Object value)
at Telerik.WinControls.RadItemCollection.AddRange(RadItem[] value)
BindingList<DataElementMap> DataElementMaps { get; set; }
mappingsGridView.DataSource = DataElementMaps;
I am adding a menu item to the Context Menu using the following
private void mappingsGridView_ContextMenuOpening(object sender, ContextMenuOpeningEventArgs e)
{
if (!e.ContextMenu.Items.Contains(_ceateTransformationMenuItem))
{
e.ContextMenu.Items.AddRange(_ceateTransformationMenuItem);
}
}This works fine until I clear the data bound list. (i.e. DataElementMaps.Clear(); )
After a clear is executed the above code throws the following exception
System.ArgumentException occurred
Message=Cannot remove the specified item because it was not found in the specified Collection.
Source=mscorlib
StackTrace:
at System.Collections.CollectionBase.System.Collections.IList.Remove(Object value)
at Telerik.WinControls.RadElementCollection.CheckElementAlreadyAdded(RadElement element)
at Telerik.WinControls.RadElementCollection.OnInsert(Int32 index, Object value)
at System.Collections.CollectionBase.System.Collections.IList.Insert(Int32 index, Object value)
at Telerik.WinControls.RadItemOwnerCollection.OnInsertComplete(Int32 index, Object value)
at System.Collections.CollectionBase.System.Collections.IList.Add(Object value)
at Telerik.WinControls.RadItemCollection.AddRange(RadItem[] value)
Dimitar
Telerik team
answered
on
04 Dec 2014
5 answers
112 views
I'm having an issue with the GridView. I'd like to be able to dynamically make appear the AddNewRow control. By default I set the AllowAddNewRow=false, but if the user clicks on The "Add New Row" menu item, I'd like for the NewRow control to appear on the grid, after I set the AllowAddNewRow=true. But I can not find a way to redraw or reload the entire grid for it to appear. Is this even possible?
The gridview is on a form, do I have to reload the whole form for this work?
I am using version 2014.2.715.40.
Thanks for the help
P.S. A little sample of the method called dynamically:
public void New()
{
radGridPilotage.MasterTemplate.BeginUpdate();
radGridPilotage.AllowEditRow = true;
radGridPilotage.MasterTemplate.AllowAddNewRow = true;
radGridPilotage.MasterTemplate.EndUpdate();
radGridPilotage.Update();
}
The gridview is on a form, do I have to reload the whole form for this work?
I am using version 2014.2.715.40.
Thanks for the help
P.S. A little sample of the method called dynamically:
public void New()
{
radGridPilotage.MasterTemplate.BeginUpdate();
radGridPilotage.AllowEditRow = true;
radGridPilotage.MasterTemplate.AllowAddNewRow = true;
radGridPilotage.MasterTemplate.EndUpdate();
radGridPilotage.Update();
}
Dimitar
Telerik team
answered
on
04 Dec 2014
