Questions on UI for WinForms Forum

4 answers

94 views

Hi
I am working in bilingual form
when i call a form as Showdialog then it cant be change as culture .
Like when i want to see English in English culture and Arabic in Arabic culture.

General Discussions

answered on 05 Mar 2011

7 answers

627 views

dynamically disabling buttons in gridview

Hi There. I'm trying to dynamically disable/enable buttons in the grid but every command is becoming disabled...
any ideas?

Thanks.





private

void gvMainInfo_CellFormatting(object sender, CellFormattingEventArgs e)

{

if (e.CellElement.Value != null)

{

if ((e.CellElement.ColumnInfo).HeaderText == "Status")

{

GridCommandCellElement commandCell = (GridCommandCellElement)e.CellElement;

RadButtonElement buttonElement = (RadButtonElement)commandCell.Children[0];

if (e.CellElement.Value.ToString() == "Acitvate")

{

buttonElement.Enabled = true;

}

else

{

buttonElement.Enabled = false;

}

GridView

answered on 04 Mar 2011

11 answers

191 views

autohideposition

hey
1- i use dock control but autohideposition dont support "right top"
2-how to i can select a icon for dock

Dock

answered on 04 Mar 2011

2 answers

201 views

Changed theme not applying at runtime

Hello...
I changed the theme of form and controls placed to "WinXPLuna" but they are not applying at runtime. Can u suggest me anything...

Thanks in advance...

Themes and Visual Style Builder

answered on 04 Mar 2011

11 answers

504 views

Rad Scheduler scroll position

Is there a way to focus the scroll position of the scheculer to the current time of the day.

For example if the day view is set for 24 hour format(0-23 hours) and the current time is 5pm, Is it possible to set the scroll position of the scheduler to 1700 hrs than 0hr.

Scheduler and Reminder

answered on 04 Mar 2011

2 answers

62 views

2011 Beta TreeView mouse event issue?

Hi

I have added a mouse button handler to a RadTreeView in the TreeView's Loaded function like so:

tv.AddHandler(RadTreeViewItem.MouseLeftButtonDownEvent, new MouseButtonEventHandler(this.radTreeView_MouseLeftButtonDown), true);

but when I set my project to use the 2011 Beta libs this event seems to be getting triggered twice for every click, but it is only triggered once in the previous libs.

Is this a new problem that has been introduced, or known / expected behaviour?

Thanks

General Discussions

answered on 04 Mar 2011

3 answers

131 views

Cell color duplicates

Hi,

I have a function that calculates the color based on value in a cell.
This works nicely, but when i scroll, the cell color duplicates and attaches to cells that should not have the color.

Please look at the sample code:

namespace RadControlsWinFormsApp3

{

partial class Form1

{

/// <summary>

/// Required designer variable.

/// </summary>

private System.ComponentModel.IContainer components;

/// <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()

{

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

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

this.SuspendLayout();

//

// radGridView1

//

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

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

this.radGridView1.Name = "radGridView1";

this.radGridView1.Size = new System.Drawing.Size(364, 395);

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(364, 395);

this.Controls.Add(this.radGridView1);

this.Name = "Form1";

this.Text = "Form1";

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

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.UI.RadGridView radGridView1;

}

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls.UI;

namespace RadControlsWinFormsApp3

{

public partial class Form1 : Form

{

List<RowHelper> rows = new List<RowHelper>();

colorhelper MyColors = new colorhelper();

public Form1()

{

InitializeComponent();

Telerik.WinControls.UI.GridViewDecimalColumn gridViewDecimalColumn1 = new Telerik.WinControls.UI.GridViewDecimalColumn();

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

Telerik.WinControls.UI.GridViewComboBoxColumn gridViewComboBoxColumn1 = new Telerik.WinControls.UI.GridViewComboBoxColumn();

Telerik.WinControls.UI.GridViewMultiComboBoxColumn gridViewComboBoxColumn2 = new Telerik.WinControls.UI.GridViewMultiComboBoxColumn();

rows.Add(new RowHelper(1, "Row1", 1, 200000));

rows.Add(new RowHelper(2, "Row2", 2, 400000));

rows.Add(new RowHelper(3, "Row3", 3, 600000));

rows.Add(new RowHelper(4, "Row4", 1, 1200000));

rows.Add(new RowHelper(5, "Row4", 1, 1800000));

rows.Add(new RowHelper(6, "Row4", 1, null));

rows.Add(new RowHelper(7, "Row4", 1, null));

rows.Add(new RowHelper(8, "Row4", 1, null));

rows.Add(new RowHelper(9, "Row4", 1, null));

rows.Add(new RowHelper(10, "Row4", 1, null));

rows.Add(new RowHelper(11, "Row4", 1, null));

rows.Add(new RowHelper(12, "Row4", 1, null));

rows.Add(new RowHelper(13, "Row4", 1, null));

rows.Add(new RowHelper(14, "Row4", 1, null));

rows.Add(new RowHelper(15, "Row4", 1, null));

rows.Add(new RowHelper(16, "Row4", 1, null));

rows.Add(new RowHelper(17, "Row4", 1, null));

rows.Add(new RowHelper(18, "Row4", 1, null));

rows.Add(new RowHelper(19, "Row4", 1, null));

rows.Add(new RowHelper(20, "Row4", 1, null));

rows.Add(new RowHelper(21, "Row4", 1, null));

rows.Add(new RowHelper(22, "Row4", 1, null));

rows.Add(new RowHelper(23, "Row4", 1, null));

rows.Add(new RowHelper(24, "Row4", 1, null));

rows.Add(new RowHelper(25, "Row4", 1, null));

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

list.Add(new helper(1, "test1"));

list.Add(new helper(2, "test2"));

list.Add(new helper(3, "test3"));

List<multicolumnhelper> multicolumnlist = new List<multicolumnhelper>();

multicolumnlist.Add(new multicolumnhelper(1, "test1", "col2"));

multicolumnlist.Add(new multicolumnhelper(2, "test2", "col2"));

multicolumnlist.Add(new multicolumnhelper(3, "test3", "col2"));

gridViewComboBoxColumn1.DataSource = list;

gridViewComboBoxColumn1.DisplayMember = "Value";

gridViewComboBoxColumn1.ValueMember = "ID";

gridViewComboBoxColumn1.HeaderText = "Test";

gridViewComboBoxColumn1.Name = "test";

gridViewComboBoxColumn1.FieldName = "RowID";

gridViewTextBoxColumn1.Name = "rowtext";

gridViewTextBoxColumn1.HeaderText = "rowtext";

gridViewTextBoxColumn1.FieldName = "RowText";

gridViewComboBoxColumn2.DataSource = multicolumnlist;

gridViewComboBoxColumn2.DisplayMember = "Value";

gridViewComboBoxColumn2.ValueMember = "ID";

gridViewComboBoxColumn2.HeaderText = "Test";

gridViewComboBoxColumn2.Name = "test2";

gridViewComboBoxColumn2.FieldName = "RowID";

gridViewDecimalColumn1.Name = "ColorTest";

gridViewDecimalColumn1.HeaderText = "ColorTest";

gridViewDecimalColumn1.FieldName = "ColorTest";

radGridView1.Columns.AddRange(new

Telerik.WinControls.UI.GridViewDataColumn[] { gridViewComboBoxColumn1, gridViewTextBoxColumn1, gridViewComboBoxColumn2, gridViewDecimalColumn1 });

radGridView1.CellFormatting += new CellFormattingEventHandler(radGridView1_CellFormatting);

PopulateData();

this.radGridView1.CellEditorInitialized += new GridViewCellEventHandler(radGridView1_CellEditorInitialized);

}

void radGridView1_CellFormatting(object sender, CellFormattingEventArgs e)

{

if (e.Column.Name == "ColorTest")

{

if (e.CellElement.Value != null)

{

e.CellElement.DrawFill = true;

try

{

Color useColor = MyColors.GetColorForValue((int)e.CellElement.Value);

e.CellElement.BackColor = useColor;

e.CellElement.BackColor2 = useColor;

e.CellElement.BackColor3 = useColor;

e.CellElement.BackColor4 = useColor;

}

catch (Exception)

{

}

void radGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e)

{

if (e.ActiveEditor is RadMultiColumnComboBoxElement)

{

RadMultiColumnComboBoxElement editor = (RadMultiColumnComboBoxElement)e.ActiveEditor;

editor.DropDownWidth = 200;

editor.EditorControl.ShowColumnHeaders = false;

editor.EditorControl.Columns["ID"].IsVisible = false;

editor.EditorControl.ShowRowHeaderColumn = false;

}

private void PopulateData()

{

radGridView1.DataSource = rows;

}

public class colorhelper

{

public colors DefaultColor = null;

List<colors> myColors = new List<colors>();

public colorhelper()

{

myColors.Add(new colors(0, 300000, Color.Green, Color.Green));

myColors.Add(new colors(300000, 500000, Color.Green, Color.Yellow));

myColors.Add(new colors(500000, 1200000, Color.Yellow, Color.Red));

DefaultColor = myColors[2];

}

public Color GetColorForValue(decimal Value)

{

colors col = myColors.Find(c => c.From <= Value && c.To >= Value);

if (col == null) col = DefaultColor;

return col.GetColor(Value);

}

public class colors{

public colors(int from, int to, Color fromcolor, Color tocolor)

{

From = from;

To = to;

FromColor = fromcolor;

ToColor = tocolor;

}

public int From { get; set; }

public int To { get; set; }

public Color FromColor { get; set; }

public Color ToColor { get; set; }

public int size

{

get { return To - From; }

}

public int relativeValue(decimal value)

{

if (value > To)

return 0;

else

return To - (int)value;

}

public Color GetColor(decimal Value)

{

int rMax = FromColor.R;

int rMin = ToColor.R;

int gMax = FromColor.G;

int gMin = ToColor.G;

int bMax = FromColor.B;

int bMin = ToColor.B;

var rAverage = Math.Abs(rMin + (int)((rMax - rMin) * relativeValue(Value) / size));

var gAverage = Math.Abs(gMin + (int)((gMax - gMin) * relativeValue(Value) / size));

var bAverage = Math.Abs(bMin + (int)((bMax - bMin) * relativeValue(Value) / size));

return Color.FromArgb(rAverage, gAverage, bAverage);

}

public class helper

{

public helper(int id, string value)

{

ID = id;

Value = value;

}

public int ID { get; set; }

public string Value { get; set; }

}

public class multicolumnhelper

{

public multicolumnhelper(int id, string value, string value2)

{

ID = id;

Value = value;

Value2 = value2;

}

public int ID { get; set; }

public string Value { get; set; }

public string Value2 { get; set; }

}

public class RowHelper

{

public RowHelper(int id, string text, int id2, int? value)

{

RowID = id;

RowText = text;

RowID2 = id2;

ColorTest = value;

}

public int RowID { get; set; }

public string RowText { get; set; }

public int RowID2 { get; set; }

public int? ColorTest { get; set; }

}

GridView

answered on 04 Mar 2011

3 answers

138 views

csv export

Hi,
2 questions...

1. Is there a way of keeping the column visible but not appearing in the export?
2. How and what do innerelements do?

Thanks
Deepak

GridView

answered on 04 Mar 2011

1 answer

167 views

dont allow edit of textbox in a dropdownlist

Is there a way to make the textbox part of a dropdownlist readonly (so it works more like a html dropdown) ?

DropDownList

answered on 04 Mar 2011

1 answer

133 views

How to differentiate the context menus

Hi All,
I'm working on customizing certain menu items available on Filter ContextMenu. For that I'm handling ContextMenuOpening event.
This event is generated for all context menus like, Header context menu, Data row context menu and Filter row funnel-button context menu. I wanted to differentiate among these Context Menus and handle only Filter row funnel-button context menu.

Actually one thing I observed was on ContextMenuProvider. It varies like HeaderCellElement, DataCellElement and for funnel-button it is null. Is it a right object to differentiate the context menus or is there any other options available? Please help me out.

Thanks and Regards
ArunDhaJ

GridView

answered on 04 Mar 2011