Questions on UI for WinForms Forum

4 answers

185 views

Cannot modify RadForm in Visual Style Builder

I cannot modify Radform in Visual Style Builder. It always shows blue theme. I tried to load predefined theme(Desert) and it did not change either. I want to modify title bar and system buttons(min, max, close).

Themes and Visual Style Builder

answered on 21 Dec 2009

13 answers

246 views

Bugs on RadGridView 2009.3 ?

I'm testing 2009.3, in my opinion it was on right track, but some of this strange behavior bugged me.

1. Filtering:
   a. Sometimes filter icon appear even I set AllowFilter for Column = False
   b. End user behavior for filtering on some column type (eg. DateTimeColumn, or CheckBoxColum) sometime feels ackward,
       after user set value for DateTimeColumn there's no way user can set filter value to NULL to clear filtering.
2.   Grouping:
   a. Sometimes Group Expand/Colapse didn't show when grouping (I'm using default theme).
        (Image: Non Visible Expand-Colapse Button)
   b. Question: How can I sort column using original value (not displayed value), because I have altered Text value on CellFormating event?
3. Design Mode:
   - Many times Visual Studio (I'm using VS2008 Pro), display "Null Reference Exception" MessageBox, just close, or hang when trying to open Open Property Builder.
      (I'm binding RadGridView using BindingSource component)

GridView

answered on 21 Dec 2009

1 answer

233 views

Build Server - licence

Hi All, I am running TFS 2008 and have a build server in place.

With my projects I create a common folder to put in my reference libraries so that later down the track i will be able to get compiling code from source control.

in this common folder i have my telerik assemblies with my UI project (winforms) references out of there. This works great on my local PC and on other devs but my build server fails with "Unable to find manifest signing certificate in the certificate store."

I dont want to install the rad controls on my build server - because that would create a dependency on them being install (think 12 month later when that server has been rebuilt)

any Ideas?

Alastair

UPDATE: It seems as though a self signed certificate had crept into to project. All sorted now

General Discussions

answered on 21 Dec 2009

3 answers

304 views

How to validate row data

Hi,
     I have a rad gridview windows control with a GridViewTextBoxColumn and a GridViewCheckBoxColumn. AllowAddNewRow is set to "True" for the Gridview. I have written code in DefaultValuesNeeded event to set the check box selected. I need to validate data in the current editing row before the focus moves to a new row or some other row. I have written code in CurrentRowChanging event to validate the data but the cell value is always null.

private void radGridView1_CurrentRowChanging(object sender, CurrentRowChangingEventArgs e)

        {

            if (e.CurrentRow == null) return;

            radGridView1.Invalidate();

            var val = Convert.ToString(e.CurrentRow.Cells["column1"].Value);

            if (val == "test")

            {

                MessageBox.Show("Invalid data");

                e.Cancel = true;

            }

        }

In which event should i write the code.

Regards
Shamjith

GridView

answered on 21 Dec 2009

3 answers

149 views

Do not dropdown on button click (DropDownButton)

Hi there!

I´d need to do some action when I click on a DropDownButton (not the arrow) and I do not want that de DropDownButton shows its menu.

How can I get this result?

Regards

Darío K

Buttons, RadioButton, CheckBox, etc

answered on 21 Dec 2009

1 answer

202 views

TextBox Does Not Fire Events!

Hi All,

I have created a class which inherits from RADTextBox and override the OnKeyPress() method.

public class RegExpRadTextBox : RadTextBox
{
string _keyRegExp;
public string KeyRegExp
{
get { return this._keyRegExp; }
set { this._keyRegExp = value; }
}

protected override void OnKeyPress(KeyPressEventArgs e)
{
if (!string.IsNullOrEmpty(this._keyRegExp))
{
if (!Regex.IsMatch(e.KeyChar.ToString(), this._keyRegExp))
{
e.Handled = true;
}
}

base.OnKeyPress(e);
}
}

But when i type some text, nothing happens (Keypress Event Firing/Raised).

(Keydown is also doesnt work.)

What should i do?

Thanks.

TextBox

answered on 21 Dec 2009

0 answers

101 views

Error with vertical scroll bar in hierarchy view.

Hi,
I am getting 'Index was outside the bounds of the array.' exception when i try to use the vertical scroll bar of last tab in my child grid and then click on some other tab. why is this happening ??

GridView

asked on 21 Dec 2009

1 answer

84 views

AfterCollapse' and 'NodeCollapsed' events missing?

I am hoping someone replies to this post during the weekend.

The documentation for Q3 2009 says that 'AfterCollapse' is a public event of RadTreeView, and also it says to use 'NodeCollapsed' event instead of 'AfterCollapse'.

I found that neither 'AfterCollapse' nor 'NodeCollapsed' appear as public events in Visual Studio, even though both these events are documented as 'Public' events in the documentation of RadTreeView in Q3 2009.

Anyone noticed this strange inconsistency with latest 'RadTreeView'? Is there any simple or complex alternative solution for these missing events or a simple upgrade path for this scenario?

Treeview

answered on 19 Dec 2009

1 answer

134 views

Handling Input Errors in Gridview Filter Row

I have a gridview (v2.0.50727) with filter row enabled. Some of the gridview columns have integer datatype. When a string is entered instead of integer an exception is being thrown for understandable reason. My question is where do I handle the input validation? (What event do I subscribe, etc).

Also is it possible to have a dropdown list in the filter row for some of the columns? One of the columns in my grid is a foreign key column and is being populated with string representation of the value. Please refer to an example if possible. I have searched the forums and found posts that said in future versions of gridview this should be possible, is it possible now?

GridView