Questions on UI for WinForms Forum

1 answer

267 views

Manual Position

Dear Admins,

I want to Show the Desktop alert specific position on the screen

Like I have a Parent Form which covers the full screen. A Child form is Called from the Parent as ShowDialog.

The requirement is to Display the Alert on the Location of Child Form (Bellow the Tittle Bar of Child Form). the width of Alert will be Equal to the Width of Form.

How can i achieve this behavior.

DesktopAlert

answered on 24 Sep 2019

1 answer

162 views

VisualStudio2019 theme for WinForms

Hello,

With the R3 2019 release of the UI for WPF suite, you have introduced a brand new VisualStudio2019 theme.

Is there a chance this theme will also soon be available for WinForms ?

Thanks,

Best regards

General Discussions

answered on 23 Sep 2019

2 answers

159 views

Cell tags lost on LoadLayout

I'm using tags to selectively format cells and using automatic layout saving/loading. When a layout is loaded, cell tags are lost. Example code below. I feel like the cell tag should remain intact and this is a bug? I tried to include a project but only images are allowed on the forum.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using Telerik.WinControls;

using Telerik.WinControls.UI;

namespace TestGridViewTagsLayout

{

public class Form1 : Form

{

/// <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.TableViewDefinition tableViewDefinition3 = new Telerik.WinControls.UI.TableViewDefinition();

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

this.cmdLoadLayout = new System.Windows.Forms.Button();

this.cmdSaveLayout = new System.Windows.Forms.Button();

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

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

this.SuspendLayout();

//

// radGridView1

//

this.radGridView1.Location = new System.Drawing.Point(12, 12);

//

this.radGridView1.MasterTemplate.ViewDefinition = tableViewDefinition3;

this.radGridView1.Name = "radGridView1";

this.radGridView1.Size = new System.Drawing.Size(776, 394);

this.radGridView1.TabIndex = 0;

this.radGridView1.CellFormatting += new Telerik.WinControls.UI.CellFormattingEventHandler(this.RadGridView1_CellFormatting);

//

// cmdLoadLayout

//

this.cmdLoadLayout.Location = new System.Drawing.Point(12, 415);

this.cmdLoadLayout.Name = "cmdLoadLayout";

this.cmdLoadLayout.Size = new System.Drawing.Size(75, 23);

this.cmdLoadLayout.TabIndex = 1;

this.cmdLoadLayout.Text = "Load Layout";

this.cmdLoadLayout.UseVisualStyleBackColor = true;

this.cmdLoadLayout.Click += new System.EventHandler(this.CmdLoadLayout_Click);

//

// cmdSaveLayout

//

this.cmdSaveLayout.Location = new System.Drawing.Point(93, 415);

this.cmdSaveLayout.Name = "cmdSaveLayout";

this.cmdSaveLayout.Size = new System.Drawing.Size(75, 23);

this.cmdSaveLayout.TabIndex = 1;

this.cmdSaveLayout.Text = "Save Layout";

this.cmdSaveLayout.UseVisualStyleBackColor = true;

this.cmdSaveLayout.Click += new System.EventHandler(this.CmdSaveLayout_Click);

//

// Form1

//

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

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

this.ClientSize = new System.Drawing.Size(800, 450);

this.Controls.Add(this.cmdSaveLayout);

this.Controls.Add(this.cmdLoadLayout);

this.Controls.Add(this.radGridView1);

this.Name = "Form1";

this.Text = "Form1";

this.Load += new System.EventHandler(this.Form1_Load);

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

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

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.UI.RadGridView radGridView1;

private System.Windows.Forms.Button cmdLoadLayout;

private System.Windows.Forms.Button cmdSaveLayout;

private string layoutXml = null;

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

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

list.Add(new TestEntity() { a = "1", b = "1", c = "1" });

list.Add(new TestEntity() { a = "1", b = "2", c = "2" });

list.Add(new TestEntity() { a = "3", b = "1", c = "1" });

list.Add(new TestEntity() { a = "1", b = "1", c = "1" });

radGridView1.AutoGenerateColumns = false;

GridViewTextBoxColumn textBoxColumn = new GridViewTextBoxColumn();

textBoxColumn.Name = "a";

textBoxColumn.HeaderText = "A";

textBoxColumn.FieldName = "a";

textBoxColumn.AutoSizeMode = BestFitColumnMode.AllCells;

radGridView1.MasterTemplate.Columns.Add(textBoxColumn);

textBoxColumn = new GridViewTextBoxColumn();

textBoxColumn.Name = "b";

textBoxColumn.HeaderText = "B";

textBoxColumn.FieldName = "b";

textBoxColumn.AutoSizeMode = BestFitColumnMode.AllCells;

radGridView1.MasterTemplate.Columns.Add(textBoxColumn);

textBoxColumn = new GridViewTextBoxColumn();

textBoxColumn.Name = "c";

textBoxColumn.HeaderText = "C";

textBoxColumn.FieldName = "c";

textBoxColumn.AutoSizeMode = BestFitColumnMode.AllCells;

radGridView1.MasterTemplate.Columns.Add(textBoxColumn);

radGridView1.DataSource = list;

HighlightFieldChanges();

radGridView1.TableElement.Update(GridUINotifyAction.Reset);

}

private void HighlightFieldChanges()

{

for (int i = 1; i < radGridView1.RowCount; i++)

{

GridViewRowInfo prevRow = radGridView1.Rows[i - 1];

GridViewRowInfo curRow = radGridView1.Rows[i];

for (int j = 0; j < prevRow.Cells.Count; j++)

{

if (!(Convert.ToString(prevRow.Cells[j].Value).Equals(Convert.ToString(curRow.Cells[j].Value))))

{

prevRow.Cells[j].Tag = true;

}

private void RadGridView1_CellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)

{

if (((e.Row.Cells[e.ColumnIndex].Tag) as bool?).GetValueOrDefault(false) == true)

{

e.CellElement.DrawFill = true;

e.CellElement.BackColor = Color.LightYellow;

e.CellElement.NumberOfColors = 1;

}

else

{

e.CellElement.ResetValue(LightVisualElement.DrawFillProperty, ValueResetFlags.Local);

e.CellElement.ResetValue(LightVisualElement.BackColorProperty, ValueResetFlags.Local);

e.CellElement.ResetValue(LightVisualElement.NumberOfColorsProperty, ValueResetFlags.Local);

}

private void CmdSaveLayout_Click(object sender, EventArgs e)

{

MemoryStream ms = new MemoryStream();

radGridView1.SaveLayout(ms);

ms.Flush();

ms.Position = 0;

StreamReader sr = new StreamReader(ms);

layoutXml = sr.ReadToEnd();

}

private void CmdLoadLayout_Click(object sender, EventArgs e)

{

MemoryStream ms = new MemoryStream();

StreamWriter sw = new StreamWriter(ms);

sw.Write(layoutXml);

sw.Flush();

ms.Position = 0;

radGridView1.LoadLayout(ms);

radGridView1.TableElement.Update(GridUINotifyAction.Reset);

}

public class TestEntity

{

public string a { get; set; }

public string b { get; set; }

public string c { get; set; }

}

GridView

answered on 23 Sep 2019

1 answer

109 views

Line series not being drawn

My lineseries won't draw the line between points unless I use the category menu to change the palette at run time. I need to define my own palette.

What have I missed, or is this a bug?

Please see extracted solution that shows the problem. I've hand coded all the series etc as messing too much in the designer seems to corrupt the design file.

http://www.mediafire.com/file/0louxrb7fzx1ajt/testappchart.rar/file

ChartView

answered on 23 Sep 2019

3 answers

246 views

How i can Move between subitems in Listview Multi columns using tab Key

Normally in radlistview with multi Rows and Columns I can use arrowkey to move between subitems but my intention is to use tab to move faster, I wrote this code but it didn't work (using tabkey to activate arrowkey)
My initial idea was to locate the subitems (via the current column and the current listviewdataitem however I didn't know how to activate the subitems) like using vba to activate a certain cell in excel: Cells ( 1,1) .activate but I haven't found this function yet
Can you tell me can do it or not?
thanks you.

'---------------------------------

Private Sub RadListview_PreviewKeyDown(sender As Object, e As PreviewKeyDownEventArgs) Handles RadListview.PreviewKeyDown

If Not (e.Modifiers = Keys.Shift) AndAlso e.KeyCode = Keys.Tab Then

My.Computer.Keyboard.SendKeys("{right}", True)

'SendKeys.Send("{right}")

ElseIf e.Modifiers = Keys.Shift AndAlso e.KeyCode = Keys.Tab Then

SendKeys.Send("{left}")

End If

End Sub

ListView

answered on 23 Sep 2019

12 answers

1.4K+ views

How to Import table from excel file to Listview?

Hi. I'm a new user of telerik radlistview control and I'm having some problems importing tables from excel into listview.
I think I can use loops to do this however I want to use datasource to import once. The problem is that I am not sure what type of data for datasource. Is it the same with listfillrange property (lisbox.list = variant) for listbox in excel like vba?
Can this work or not:

Dim import As XlsxFormatProvider = New XlsxFormatProvider
Dim wb As Workbook = import.Import(File.ReadAllBytes(exportfile))
Dim ws As Worksheet = wb.Sheets(0)
Radlistview.DataSource = ws.UsedRange

Thanks you!

ListView

answered on 20 Sep 2019

5 answers

1.1K+ views

Detect listview cell values change by another event

Hi . I have set up some events for listview on windows form where some events (keydow, rightclick ..) will change listview's cell value, others will work if detecting this value change ( give notice to users, ....)
I used some events:
listview_ItemValuechanged
listview_Text
listview_ItemEdite
listview_ItemValuechanging
however they do not seem to be detected when a change in value occurs from another event

How can i implement this idea?

Thanks a lot

ListView

answered on 20 Sep 2019

3 answers

135 views

Issues on Scheduler Day View

Hi,

As of now In SchedulerDayView we are able to get the next date by clicking the Previous view and Next view option on the context menu. We need an option to set it on a scroll bar. Please suggest. Attached video link & code screenshot for your reference.

Video link & Screenshot

Scheduler and Reminder

answered on 19 Sep 2019

4 answers

149 views

Filter (Blanks) Programmatically

I am attempting to filter results in a RadGrid.

What I am looking for is the programmatic equivalent of selecting the all but (blanks) or not (blanks) option from the filtering area.

I will apply filters of " " and "" but still will get results of " " or varying amounts of whitespace that I don't want in the results. I cannot do this with a composite filter as I cannot capture all of cases of whitespace, but removing (blanks) achieves the correct results.

Thanks

DataFilter