Questions on UI for WinForms Forum

1 answer

140 views

Cells' values

Hi everybody.
I have a question. In the code below I'm trying replace cells with a specific value with an empty string, but this step changes also the values in the database table for corresponding cells.

GridViewRowCollection rowCollection = someGridView.Rows;
foreach (GridViewRowInfo info in rowCollection)
{
    if (info.Cells["someColumn"].Value.ToString() == "someValue")
    {
         info.Cells["someColumn"].Value = "";
    }
}

How can I avoid such a behavior, without creating another foreach loop in order to restore previous values?
Thanks in advance.
Frank.

GridView

answered on 25 Mar 2009

3 answers

386 views

Help Button not visible ..

Hi,

I add an help provider to the form (inherited from radform) and set some form properties as below
FormBorderStyle = FixedToolWindow
HelpButton=True
MinimizeBox = False
MaximizeBox=False

But i can not see the help button at the title bar. I am not sure if anybody see this problem or i made something wrong.

Regards

Ahmet HOSO

Form

answered on 25 Mar 2009

1 answer

187 views

Row Group expander

When I load a dataset into the gridview I would like to set the backcolor of the expander box if there is child rows. Is it possible if so then how do I grab box to set the backcolor.

GridView

answered on 25 Mar 2009

3 answers

167 views

ShapedForm - Resize with mouse ..

Hi,

I add a shapedform to my project. And add a radtitlebar to the form. After running the project i can resize from titlebar but i can not resize from another place.

Regards

Ahmet HOSO

ShapedForm

answered on 25 Mar 2009

1 answer

145 views

Row Backcolor

I would like to set the backcolor of a row based on data within a dataset when I set the dataset then I want to everything to work as normal. The only way I can figure out how to do it is use the "RowFormatting" but everytime you move your mouse over a row the "RowFormatting" function gets called and it does the redraw like it is a brand new row. Is there anything like a rowinitialize event. or how do I set the hover color

GridView

answered on 25 Mar 2009

1 answer

185 views

Combo Box Alternate Text Display

Hello,

When there is no item selected then the dropdown should display the alternate text i.e."Select Name" (or any other). On clicking the dropdown that text should disappear or appears when the item is not selected in Light color with italic font style.

Thank you,

Ajay

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 25 Mar 2009

1 answer

80 views

Unexpected Binding Results

I have a RadComboBox on my WinForm (using the latest 2009 release), whose DataSource I am setting to an Array of Objects, similar to...

BankInfo[] infos = GetBankInfos();
bankInfoCombo.DataSource = infos;

I also have a BindingSource on the form that takes a List of Objects, similar to...

List<Bank> banks = GetBanks();
bankBindingSource.DataSource = banks;

I am using this BindingSource to bind the controls on the form to the Bank objects properties, of which one of them is ReturnProcessor of Type BankInfo.

this.bankInfoCombo.DataBindings.Add(new System.Windows.Forms.Binding("SelectedValue", this.bankBindingSource, "ReturnProcessor", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

When using a WinForm ComboBox, if I choose not to set the DisplayMember or ValueMember, the ComboBox will call ToString() on the Array and use that as the DisplayMember and the Object as the ValueMember.

The behavior I am getting out of the RadComboBox however, is that if I do not set the ValueMember, nor the DisplayMember it will still ToString() the object, but the SelectedValue will always be null. What occurs, because of this behavior, is that my Databound object ReturnProcessor value is always null, even after a Value is selected from the ComboBox.

The Work around that I have found is to Sub Class the object with a new Property of ReturnProcessorObjectID of Type long. And set the ComboBox DisplayMember to BankName and ValueMember to ObjectID. Then I bind the ComboBox to ReturnProcessorObjectID, instead of the Real ReturnProcessor object.

General Discussions

answered on 23 Mar 2009

1 answer

142 views

GridView ColumnGroup Header Font Color

Hi,

I need to change the color of ColumnGroup Header of the GridView Control.

Thanks

Ajay

GridView

answered on 23 Mar 2009

3 answers

180 views

Validation event not firing after Edit

Hi,

I was expecting the Validating or Validation event to fire after committing an edit of a node. Currently calling radTreeView BeginEdit() function to initiate editing and commit changes using Enter.

I need to validate the name and text of the edited tree node before accepting the change. Is there something I need to enable for the event to fire? Or should I be using a different event?

Regards,
Brad

Treeview

answered on 23 Mar 2009

3 answers

121 views

painting issue ?

Im loading some dummy nodes into a tree when the form loads
Im using the NodeExpand event with LoadOnDemand = true
When this event code is finished, my tree background is gone and the the other nodes loose their +/- icons.

What should I check ?

Treeview

answered on 23 Mar 2009