Questions on UI for WinForms Forum

1 answer

175 views

Hi,

postgres supports arrays as column data. Is there a best practice to generically bind the grid to data tables that contain for example string[] columns?
If yes, is filtering and sorting supported by RadGridView without having to write custom code?
Currently I resorted to using array_to_string(column) in my SQL, but that leads to potentially very long / wide columns.

Regards
Erwin

GridView

answered on 22 Apr 2011

4 answers

138 views

Gridview Scrollbar Stops working

Hi all,

I have a GridView which works fine initially.. I use a command button to open an edit form and on closing it refreshes and rebind the datasource. All the data refreshes correctly, but I lose the ability to scroll vertically using either the up/down arrows, clicking the bar itself, or using the mouse wheel.

Clicking on the "bar" and dragging still scrolls, but that is the only way to scroll at that point.

Thanks,

Matt

GridView

answered on 22 Apr 2011

1 answer

122 views

Databound GridViewComboBoxColumn Problem

I have a column defined in my gridview. It's name is "Energy".

I use the following code to bind my object to it. The object is a generic List<> of other objects.

((

GridViewComboBoxColumn)m_grd.Columns["Energy"]).DataSource = m_snc.Configuration.CurrentRadiationDevice.Energies;

The binding seems to work fine as far as display is concerned. Each "Energy" object has a ToString() override which allows me to see what I want in cases where I bind it to drop down's (like in this case). The combo box is filled with the appropriate display values; however when I select an item from the combo box and check to see the value's type, it is always a System.String instead of the object type of the item that is selected. In this case the expected behavior of the following method would be my custom object's type instead of System.String.

row.Cells["Energy"].Value.GetType()

GridView

answered on 22 Apr 2011

1 answer

93 views

RadDock Toolbox to Document but not back

Using the RadControls for WinForms Dock Visual Studio IDE example program simply do the following:
Drag the RadButton Toolbox onto the Document panel.

The Toolbox is now shown as a Document and it is not possible to drag it back to where it was before the move.

Found the answer myself:

The context menu (right click on the tab) contains more entries than the normal document windows one of which is "Floating".
Selecting this function returns it back into a Toolbox window.

Dock

answered on 22 Apr 2011

6 answers

222 views

Reduce the width of left pane of BackStageView

Hi,

The new BackStageView of PageView control is awesome. But the Office2007Black theme doesn't work on it !

My question is how can we reduce the width of the left pane (where the buttons for each page is listed) ?

Thanks

General Discussions

answered on 21 Apr 2011

1 answer

107 views

Themes for application using RadGallery

Hi,
I have a Ribbion bar in that i have i RadGallery now in that i need to add some colors and on selecting a particular color the whole application shld change to that color.

Thanks
Divya

Themes and Visual Style Builder

answered on 21 Apr 2011

3 answers

113 views

Web like UI behavior

I am looking to extend the grid so it behaves like one the web control counterparts for presenting details in a form like manner. I want to customize the grid so adding/editing a row can be done inline using the details view real estate. An example of the desired layout can be found looking at telerik asp example: http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/usercontroleditform/defaultcs.aspx . Does anyone have an example that accomplishes this?

GridView

answered on 21 Apr 2011

1 answer

141 views

Checkbox check problem

Hi,
I have 10 checkboxes in my comobox if i check the first checkbox then all other remaining 9 checkboxes sld get checked by themselves and when i uncheck then all 9 shld uncheck .How can i do this,can anyone explain me

Thanks
Divya

Buttons, RadioButton, CheckBox, etc

answered on 21 Apr 2011

1 answer

217 views

Summary row not showing?

hi I'm trying to add a summary row but it's not showing, through the builder in properties or code as per the documentation: Here is the code:

Dim summaryItem As New GridViewSummaryItem()
summaryItem.Name = "Quantity"
summaryItem.Aggregate = GridAggregateFunction.Sum

Dim summaryRowItem As New GridViewSummaryRowItem()
summaryRowItem.Add(summaryItem)

Me.RadGridView1.SummaryRowsTop.Add(summaryRowItem)
Me.RadGridView1.SummaryRowsBottom.Add(summaryRowItem)

Thanks for any help

GridView

answered on 21 Apr 2011

1 answer

123 views

A couple of problems with sorting

Hello!

I found a couple of problems with sorting in the latest WinForms RadGridView (2011.1.11.315). I use Visual Studio 2008 with .NET 3.5.

I have created a single form with a RadGridView.

Form1.cs

using System.Collections.Generic;

using System.Windows.Forms;

namespace Test

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

List<DataItem> list = new List<DataItem>();

list.Add(new DataItem() { Name = "Item 1" });

list.Add(new DataItem() { Name = "Item 3" });

list.Add(new DataItem() { Name = "Item 2" });

radGridView1.DataSource = list;

}

public class DataItem

{

public string Name { get; set; }

}

Form1.Designer.cs

namespace Test

{

partial class Form1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components = null;

/// <summary>

/// Clean up any resources being used.

/// </summary>

/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>

protected override void Dispose(bool disposing)

{

if (disposing && (components != null))

{

components.Dispose();

}

base.Dispose(disposing);

}

#region Windows Form Designer generated code

/// <summary>

/// Required method for Designer support - do not modify

/// the contents of this method with the code editor.

/// </summary>

private void InitializeComponent()

{

Telerik.WinControls.UI.GridViewTextBoxColumn gridViewTextBoxColumn1 = new Telerik.WinControls.UI.GridViewTextBoxColumn();

Telerik.WinControls.Data.SortDescriptor sortDescriptor1 = new Telerik.WinControls.Data.SortDescriptor();

this.radGridView1 = new Telerik.WinControls.UI.RadGridView();

((System.ComponentModel.ISupportInitialize)(this.radGridView1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radGridView1.MasterTemplate)).BeginInit();

this.SuspendLayout();

//

// radGridView1

//

this.radGridView1.BackColor = System.Drawing.SystemColors.Control;

this.radGridView1.Cursor = System.Windows.Forms.Cursors.Default;

this.radGridView1.Dock = System.Windows.Forms.DockStyle.Fill;

this.radGridView1.EnableCustomSorting = true;

this.radGridView1.Font = new System.Drawing.Font("Segoe UI", 8.25F);

this.radGridView1.ForeColor = System.Drawing.SystemColors.ControlText;

this.radGridView1.ImeMode = System.Windows.Forms.ImeMode.NoControl;

this.radGridView1.Location = new System.Drawing.Point(0, 0);

//

// radGridView1

//

gridViewTextBoxColumn1.FieldName = "Name";

gridViewTextBoxColumn1.FormatString = "";

gridViewTextBoxColumn1.HeaderText = "Name";

gridViewTextBoxColumn1.Name = "Name";

this.radGridView1.MasterTemplate.Columns.AddRange(new Telerik.WinControls.UI.GridViewDataColumn[] {

gridViewTextBoxColumn1});

sortDescriptor1.PropertyName = "Name";

this.radGridView1.MasterTemplate.SortDescriptors.AddRange(new Telerik.WinControls.Data.SortDescriptor[] {

sortDescriptor1});

this.radGridView1.Name = "radGridView1";

this.radGridView1.RightToLeft = System.Windows.Forms.RightToLeft.No;

this.radGridView1.Size = new System.Drawing.Size(284, 264);

this.radGridView1.TabIndex = 0;

this.radGridView1.Text = "radGridView1";

//

// Form1

//

this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

this.ClientSize = new System.Drawing.Size(284, 264);

this.Controls.Add(this.radGridView1);

this.Name = "Form1";

this.Text = "Form1";

((System.ComponentModel.ISupportInitialize)(this.radGridView1.MasterTemplate)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radGridView1)).EndInit();

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.UI.RadGridView radGridView1;

}

The grid sorting is set in the Property Builder. But when line

((System.ComponentModel.ISupportInitialize)(this.radGridView1)).EndInit();

is executed, the SortDescriptors collection is cleared and the grid becomes unsortable. This worked well in v.2010.3.10.1215.

Another problem concerns the custom sorting. I found that the CustomSorting handler is not called if the SortDescriptors collection is empty. I think this is not correct behavior, because the custom sorting logic is coded explitly and it should not depend on the grid sort descriptiors. If we note the first problem listed above, the CustomSorting handler is not called until the SortDescriptors collection is explicitly populated with the application code, or the column header is clicked by user.

Thank you.

GridView

answered on 21 Apr 2011