Questions on UI for WinForms Forum

2 answers

134 views

SetColumnWidth

I've been playing with the 2020 R1 demo and am having trouble setting and getting column widths of the VirtualGrid.

To set the column widths I've tried both TableElement, as in the documentation, and MasterViewInfo, which I found in the forums.

A little insight would be great!

Thanks!

using System;

using System.Collections.Generic;

using Telerik.WinControls.UI;

namespace TelerikWinFormsApp1

{

public partial class RadForm1 : Telerik.WinControls.UI.RadForm

{

List<Foo> data = new List<Foo>();

public RadForm1()

{

InitializeComponent();

this.Text = "Foo";

radVirtualGrid1.AutoSize = false;

this.radVirtualGrid1.CellValueNeeded += new Telerik.WinControls.UI.VirtualGridCellValueNeededEventHandler(this.radVirtualGrid1_CellValueNeeded);

this.radVirtualGrid1.ColumnWidthChanged += new Telerik.WinControls.UI.VirtualGridColumnEventHandler(this.radVirtualGrid1_ColumnWidthChanged);

//These methods do not set the column width

radVirtualGrid1.MasterViewInfo.SetColumnWidth(0, 300);

radVirtualGrid1.MasterViewInfo.SetColumnWidth(1, 150);

radVirtualGrid1.TableElement.SetColumnWidth(0, 300);

radVirtualGrid1.TableElement.SetColumnWidth(1, 150);

LoadData();

}

private void radVirtualGrid1_ColumnWidthChanged(object sender, VirtualGridColumnEventArgs e)

{

//This is always 100

int i = e.ViewInfo.ColumnWidth;

}

private void radVirtualGrid1_CellValueNeeded(object sender, Telerik.WinControls.UI.VirtualGridCellValueNeededEventArgs e)

{

if (e.ViewInfo == this.radVirtualGrid1.MasterViewInfo)

{

if (e.ColumnIndex < 0)

{

return;

}

e.FieldName = Foo.FieldNames[e.ColumnIndex];

if (e.RowIndex == RadVirtualGrid.HeaderRowIndex)

{

e.Value = e.FieldName;

}

else if (e.RowIndex >= 0)

{

e.Value = data[e.RowIndex][e.ColumnIndex];

}

private void LoadData()

{

Random random = new Random();

for (int i = 0; i < 10; i++)

{

Foo Foo = new Foo();

Foo.Me = i;

Foo.Yu = i;

data.Add(Foo);

}

this.radVirtualGrid1.RowCount = data.Count;

this.radVirtualGrid1.ColumnCount = Foo.FieldNames.Length;

}

public class Foo

{

public static readonly string[] FieldNames = { "Me", "Yu" };

public int Me { get; set; }

public int Yu { get; set; }

public int this[int index]

{

get

{

switch (index)

{

case 0: return Me;

case 1: return Yu;

default: return 0;

}

VirtualGrid

answered on 20 Jul 2020

5 answers

132 views

Suggestion

I suggest adding something to the RadTreeView that allows for getting which mouse button is being pressed on individual nodes. Maybe adding Button to the RadTreeViewEventArgs that returns a MouseButtons value.

For what I'm doing it won't make a huge difference, but it would help to know in certain circumstances.

Treeview

answered on 20 Jul 2020

2 answers

2.2K+ views

combobox textbox not aligning correctly

Hi,

I have an issue where I had originally set the combobox textbox alignment to the right with:

// **** Align Drop Down Box Text to Right

revPurgeCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

addPurgeCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

scrapCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

scrapRsnDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

// ************************

And it worked correctly. But then I decided I didn't want the user to be able to input anything, only select from drop down. So I added raddropdownstyle.dropdownlist:

// **** not allow use to type in

scrapCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

scrapRsnDropList.DropDownStyle = RadDropDownStyle.DropDownList;

revPurgeCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

addPurgeCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

// ************************

The raddropdownstyle.dropdownlist worked, but the alignment isn't working any longer. I tried to put this before and I tried after before it's the same. Am I doing something wrong? Here's what I have now:

// **** not allow use to type in

scrapCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

scrapRsnDropList.DropDownStyle = RadDropDownStyle.DropDownList;

revPurgeCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

addPurgeCodeDropList.DropDownStyle = RadDropDownStyle.DropDownList;

// ************************

// **** Align Drop Down Box Text to Right

revPurgeCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

addPurgeCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

scrapCodeDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

scrapRsnDropList.MultiColumnComboBoxElement.TextBoxElement.TextAlign = HorizontalAlignment.Right;

// ************************

MultiColumn ComboBox

answered on 20 Jul 2020

1 answer

101 views

Different Decimal Formats in Same Column

A gridview (read only) has a quantity column that is normally formatted with zero decimal positions. Now we have a situation where the values in some rows will have significant decimal values and others will not. Can I set the decimal format of individual cells (hoping that CellFormatting event is part of that solution)?

GridView

answered on 17 Jul 2020

12 answers

614 views

Hide Toolbar on left hand side

Hi all,

I just downloaded the Telerik UI for Winforms 2018_2_621 and started "tinkering" around with the RadImageEditor control for a specific project I am currently working on for work. I was wondering, is there a way to "hide" or "disable" the buttons on the toolbar on the left hand side of the image editor? Or (perhaps the most ideal for me) is there a way to completely hide the toolbar altogether on the left hand side?

I thought this would be a simple "enable" or "disable" on a property of the control, but I can't seem to find any documentation on this matter. Thank you and I look forward to the response.

ImageEditor

answered on 16 Jul 2020

8 answers

822 views

Paste from excel in to "Add New" row

Im looking for a way to copy multiple rows from Excel and paste them in to an empty grid. There doesnt seem to be a way to do this by default? How would I go about implementing this. If i add a blank row I can then paste the multiple rows but then the default values for the other columns dont get filled in.

With a normal grid I used the following code: This would also add the "Default Values" for the other columns as well.

private void PasteClipboard()

{

char[] rowSplitter = { '\r', '\n' };

char[] columnSplitter = { '\t' };

// Get the text from clipboard

IDataObject dataInClipboard = Clipboard.GetDataObject();

string stringInClipboard = (string)dataInClipboard.GetData(DataFormats.Text);

// Split it into lines

string[] rowsInClipboard = stringInClipboard.Split(rowSplitter, StringSplitOptions.RemoveEmptyEntries);

// Get the row and column of selected cell in grid

int r = ColumnsGrid.SelectedCells[0].RowIndex;

int c = ColumnsGrid.SelectedCells[0].ColumnIndex;

// Add rows into grid to fit clipboard lines

if (ColumnsGrid.Rows.Count < (r + rowsInClipboard.Length))

{

ColumnsGrid.Rows.Add(r + rowsInClipboard.Length - ColumnsGrid.Rows.Count);

}

// Loop through the lines, split them into cells and place the values in the corresponding cell.

for (int iRow = 0; iRow < rowsInClipboard.Length; iRow++)

{

// Split row into cell values

string[] valuesInRow = rowsInClipboard[iRow].Split(columnSplitter);

// Cycle through cell values

for (int iCol = 0; iCol < valuesInRow.Length; iCol++)

{

// Assign cell value, only if it within columns of the grid

if (ColumnsGrid.ColumnCount - 1 >= c + iCol)

{

DataGridViewCell cell = ColumnsGrid.Rows[r + iRow].Cells[c + iCol];

if (!cell.ReadOnly)

{

cell.Value = valuesInRow[iCol];

}

GridView

answered on 15 Jul 2020

3 answers

252 views

Customize New Row

Quote from https://docs.telerik.com/devtools/winforms/controls/gridview/rows/formatting-rows:

"To customize the non-data rows (header row, new row, filtering row, etc) of RadGridView, you need to handle the ViewRowFormatting event."

In that regard, how can I detect newly added row/s from ViewRowFormatting event?

Please know that I couldn't use the CreateRow event since it uses UI virtualization and it doesn't trigger for newly added rows that are not "visible" on the screen.

GridView

answered on 14 Jul 2020

5 answers

1.0K+ views

DragDrop event not fired but Over/Enter/Leave yes in RadForm

Hi,

I am just trying to drag&drop a file from the desktop to a simple radForm but DragDrop event do not fired, others events as DragEnter/DragOver/DragLeave works without problems but I can not detect when the user perform drag&Drop with the file into the form.

any idea why I can not catch this event?

namespace Drag

{

partial class RadForm1

{

/// <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()

{

this.visualStudio2012LightTheme1 = new Telerik.WinControls.Themes.VisualStudio2012LightTheme();

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

this.SuspendLayout();

//

// RadForm1

//

this.AllowDrop = true;

this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);

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

this.ClientSize = new System.Drawing.Size(643, 488);

this.Margin = new System.Windows.Forms.Padding(4);

this.Name = "RadForm1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "RadForm1";

this.ThemeName = "VisualStudio2012Light";

this.DragDrop += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragDrop);

this.DragEnter += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragEnter);

this.DragOver += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragOver);

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

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.Themes.VisualStudio2012LightTheme visualStudio2012LightTheme1;

}

namespace Drag

{

partial class RadForm1

{

/// <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()

{

this.visualStudio2012LightTheme1 = new Telerik.WinControls.Themes.VisualStudio2012LightTheme();

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

this.SuspendLayout();

//

// RadForm1

//

this.AllowDrop = true;

this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);

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

this.ClientSize = new System.Drawing.Size(643, 488);

this.Margin = new System.Windows.Forms.Padding(4);

this.Name = "RadForm1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "RadForm1";

this.ThemeName = "VisualStudio2012Light";

this.DragDrop += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragDrop);

this.DragEnter += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragEnter);

this.DragOver += new System.Windows.Forms.DragEventHandler(this.RadForm1_DragOver);

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

this.ResumeLayout(false);

}

#endregion

private Telerik.WinControls.Themes.VisualStudio2012LightTheme visualStudio2012LightTheme1;

}

Thanks a lot.

Francisco

Form

answered on 14 Jul 2020

1 answer

2.5K+ views

How to change ProgressBar color?

I'd like to change progressbar color depending on value, for example:

>50 - red

<=50 - green

How to do it in app?

ProgressBar

answered on 13 Jul 2020

12 answers

331 views

Ruler Scale Problems

I've changed some values on the Ruler element:

Startscale : 7
Endscale : 19
RangeFactor : QuarterlyHour

Problems encountered (tested over DayView):
1. Appointment area below the 12th has no lines

2. When right clicked over the appointment area and selected Next or Previous Day, the scale and range values return to their default values. Where can I find the property to set the values found for those two items in the context menu?

Also, if I may ask another question:
How can I change the text and remove items from the context menu? (e.g. New Appointment changed to New Meeting)

Sample Project Solution
http://www.megaupload.com/?d=D3SP8XR6

Scheduler and Reminder

answered on 13 Jul 2020