Questions on UI for WinForms Forum

1 answer

69 views

Hi there,

I was wondering if its possible to move some of the Pages to a 2nd row so that the pages do not overrun out of the form.

For e.g.

I got a form with the pages set up this way

|/Page 1// Page2// Page 3// Page 4// Page 5//|
| |

and I would like it to look like

|/Page1//Page2//_______________________|
|/Page3//Page4//Page5__________________|
| |

PageView

answered on 08 Sep 2011

2 answers

129 views

Some WebBrowserItems not loading

Hi

I am trying to develop a wallboard application that will simply rotate web pages to present production information about particular companies. The web pages are being served correctly and render fine within any web browser; but when using the rotator there is always one item that is blank. I have a collection of sites to display and then am simply creating items into the radRotator control, after a set period of time I simply refresh the browser. Has anyone else experienced issues with the webbrowser item not loading the page contents?

The code to setup the rotator is

radRotator1.Stop();

radRotator1.Items.Clear();

foreach (string site in sites)

{

RadWebBrowserItem item1 = new RadWebBrowserItem();

item1.Url = new Uri(site);

item1.WebBrowserControl.ScriptErrorsSuppressed = true;

radRotator1.Items.Add(item1);

}

radRotator1.CurrentIndex = 0;

radRotator1.Start(true);

To refresh after period of time

radRotator1.Stop();

foreach (RadItem item in radRotator1.Items)

{

RadWebBrowserItem item1 = (RadWebBrowserItem) item;

item1.WebBrowserControl.Refresh();

}

radRotator1.Start(true);

Any help appreciated, have spent lots of time on this but the problem is that the page that is not loaded is not consistent and could be any of the sites in the list.

Cheers

Rotator

answered on 08 Sep 2011

4 answers

176 views

Autosize rows

Hello
I have a question. Is it possible to autosize rows but not only the viewable part but the entire row?
For example I have a GridView with 45 columns but I can see in one time only part of all columns.
And if I scroll left/right I see how the rows are autosized. but I would like to have all the rows autosized from the begining.
can you help me?

GridView

answered on 08 Sep 2011

1 answer

104 views

Tree Expand Collapse

How to maintain the state of treeview.
To maintain the state I tried following options
Expand()
ExpandAll()
Toggle()
selected=true
Ensurevisible
None of the above thing works.

Treeview

answered on 08 Sep 2011

3 answers

147 views

Excel export Gridview contents when grouped

I'm reading the contents into an array then assigning it excel range for faster export.
I successfully exported to excel when it is not grouped. However when grouped I dont get the grouping effect appearing.
Below is a snippet:

           foreach (GridViewColumn col in grid.Columns)
                {
                    arr[0, i] = col.HeaderText;
                    i++;
                }
 
                //Contents
                long currRow = 0;
                foreach (GridViewRowInfo row in grid.Rows)
                {
                    int currCol=0;
                    foreach (GridViewColumn col in grid.Columns)
                    {
                        if(row.Cells[currCol].Value != null )
                        {
                           arr[currRow + 1, currCol] = row.Cells[currCol].Value.ToString();
                        }
                        else
                        {
                            arr[currRow + 1, currCol] ="";
                        }
 
                    currCol ++;
                    }
                    currRow ++;
                }
 
                rng.Value2 = arr;

any suggestions will be appreciated.

GridView

answered on 08 Sep 2011

1 answer

194 views

Bad flicker while scrolling down

Good afternoon.
I have a problem with RadPanelBar. I use VB Express 2008.
I create a new WinForm project and add a RadPanelBar control. Dock = True, GroupStyle = ExplorerBarStyle.
This is the code:

Imports Telerik.WinControls.UI

Public Class Form1

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

Dim rpbge As RadPanelBarGroupElement

For i As Integer = 0 To 10

rpbge = New RadPanelBarGroupElement

rpbge.Caption = "Group" & i

rpbge.EnableHostControlMode = True

RadPanelBar1.Items.Add(rpbge)

Next

Dim rlc As New RadListControl

rlc.Height = 2

rlc.Width = rpbge.ContentPanel.ClientSize.Width

rlc.Anchor = AnchorStyles.Left Or AnchorStyles.Right Or AnchorStyles.Top

rpbge.ContentPanel.Controls.Add(rlc)

rpbge.Expanded = True

End Sub

End Class

Now:
- Run the project and scroll down with the vertical scroll bar.
- Collapse and Expand the last group (Group10).
- Now try to scroll down again with the vertical scroll bar and you'll see the flicker.
Is there any solution?
Thank you in advance.
Gianfranco

Panelbar (obsolete as of Q2 2010)

answered on 08 Sep 2011

5 answers

176 views

Default Value in comobobox column editor

I have a combobox populated with a dataset, and i want to show in the column editor (before enter a value) a value of the items of the combo.

How can i do this.

Thanks a lot.

GridView

answered on 08 Sep 2011

3 answers

106 views

ListControl problem with scrolling and styled Items

Hi.

I have a "little" problem with the ListControl.
I am trying to do a little Chat thingy.. and facing a Problem when the items are formated with Styles (Font, Size, Bold...).

In my Test Application you will see some controls.
1.) ListControl that stores the written messages
2.) A TextBox to input the desired Text message
3.) 2 Buttons with the text 1 and 20 - The 20 Button just calls the 1 button 20 times
    The 1 Button, inserts 3 Items into the ListControl
        1st a HeaderItem with the UserName and the DateTime
        2nd a TextItem with the given Text
        3rd a FooterItem to get a space between Messages
4.) An indicator for the Items.Count Value of the ListControl

So now the Problems i have after i have added some Messages to the ListControl and do some scrolling at some Point you will notice 3 Errors.
1.) The last Item doesnt get selected (not Highlighted with the Orange Color)
2.) The scrolling doesnt work. The Scrollelement moves but the ListControl seems like frozen.
3.) No new Items get displayed, tough it works - Item Counter goes still up.

Another Problem is that when i call the 20 Buttons at first after the form loads, the last item doesnt get selected. But this isnt really an issue that i am facing in reall application, because this button only exists in this test application so that you can add items faster, since you need some. (Second time hitting this button selects list item fine, only doesnt work when hitting it at first)

Hope you guys can help me fix those problems, already tried some LayoutUpdates but no luck till now. :(

And a side Note Question, is there a way to change the HighLight MouseOver and the Select Color?

Source Code for test Application:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using Telerik.WinControls;

using Telerik.WinControls.UI;

public partial class RadForm1 : RadForm

{

public RadForm1()

{

InitializeComponent();

radTextBox1.Text = "Some random Text!";

radListControl1.AutoSizeItems = true;

radTextBox1.Font = new Font("Times New Roman", 10, FontStyle.Bold);

radTextBox1.TextBoxElement.ForeColor = Color.Red;

radListControl1.SelectionMode = SelectionMode.One;

}

List<int> ids = new List<int>();

private int GetNewId()

{

int returnValue = 0;

do

{

returnValue = new Random().Next(int.MaxValue);

} while (ids.IndexOf(returnValue) >= 0);

ids.Add(returnValue);

return returnValue;

}

private void radButton1_Click(object sender, EventArgs e)

{

RadListDataItem itemHeader = new RadListDataItem(string.Format("<html><b>{0}</b> ({1})</html>", "Some User", DateTime.Now), GetNewId());

radListControl1.Items.Add(itemHeader);

RadListDataItem itemText = new RadListDataItem(radTextBox1.Text, GetNewId());

itemText.TextWrap = true;

itemText.Font = radTextBox1.Font;

itemText.ForeColor = radTextBox1.TextBoxElement.ForeColor;

radListControl1.Items.Add(itemText);

RadListDataItem itemFooter = new RadListDataItem(" ", GetNewId());

radListControl1.Items.Add(itemFooter);

radListControl1.SelectedItem = itemFooter;

radTextBox2.Text = radListControl1.Items.Count.ToString();

}

private void radButton2_Click(object sender, EventArgs e)

{

for (int i = 0; i < 20; i++)

{

radButton1_Click(null, null);

}

Designer:

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.radListControl1 = new Telerik.WinControls.UI.RadListControl();

this.radTextBox1 = new Telerik.WinControls.UI.RadTextBox();

this.radButton1 = new Telerik.WinControls.UI.RadButton();

this.radButton2 = new Telerik.WinControls.UI.RadButton();

this.radTextBox2 = new Telerik.WinControls.UI.RadTextBox();

this.label1 = new System.Windows.Forms.Label();

((System.ComponentModel.ISupportInitialize)(this.radListControl1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radTextBox1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radButton1)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radButton2)).BeginInit();

((System.ComponentModel.ISupportInitialize)(this.radTextBox2)).BeginInit();

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

this.SuspendLayout();

//

// radListControl1

//

this.radListControl1.CaseSensitiveSort = true;

this.radListControl1.ItemHeight = 18;

this.radListControl1.Location = new System.Drawing.Point(12, 12);

this.radListControl1.Name = "radListControl1";

this.radListControl1.Size = new System.Drawing.Size(274, 229);

this.radListControl1.TabIndex = 0;

this.radListControl1.Text = "radListControl1";

//

// radTextBox1

//

this.radTextBox1.Location = new System.Drawing.Point(12, 247);

this.radTextBox1.Name = "radTextBox1";

this.radTextBox1.Size = new System.Drawing.Size(192, 20);

this.radTextBox1.TabIndex = 1;

this.radTextBox1.TabStop = false;

this.radTextBox1.Text = "radTextBox1";

//

// radButton1

//

this.radButton1.Location = new System.Drawing.Point(211, 247);

this.radButton1.Name = "radButton1";

this.radButton1.Size = new System.Drawing.Size(33, 24);

this.radButton1.TabIndex = 2;

this.radButton1.Text = "1";

this.radButton1.Click += new System.EventHandler(this.radButton1_Click);

//

// radButton2

//

this.radButton2.Location = new System.Drawing.Point(250, 247);

this.radButton2.Name = "radButton2";

this.radButton2.Size = new System.Drawing.Size(36, 24);

this.radButton2.TabIndex = 3;

this.radButton2.Text = "20";

this.radButton2.Click += new System.EventHandler(this.radButton2_Click);

//

// radTextBox2

//

this.radTextBox2.Location = new System.Drawing.Point(211, 277);

this.radTextBox2.Name = "radTextBox2";

this.radTextBox2.Size = new System.Drawing.Size(75, 20);

this.radTextBox2.TabIndex = 4;

this.radTextBox2.TabStop = false;

//

// label1

//

this.label1.AutoSize = true;

this.label1.Location = new System.Drawing.Point(153, 277);

this.label1.Name = "label1";

this.label1.Size = new System.Drawing.Size(52, 13);

this.label1.TabIndex = 5;

this.label1.Text = "Counter:";

//

// RadForm1

//

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

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

this.ClientSize = new System.Drawing.Size(298, 303);

this.Controls.Add(this.label1);

this.Controls.Add(this.radTextBox2);

this.Controls.Add(this.radButton2);

this.Controls.Add(this.radButton1);

this.Controls.Add(this.radTextBox1);

this.Controls.Add(this.radListControl1);

this.Name = "RadForm1";

//

this.RootElement.ApplyShapeToControl = true;

this.Text = "RadForm1";

this.ThemeName = "ControlDefault";

((System.ComponentModel.ISupportInitialize)(this.radListControl1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radTextBox1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radButton1)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radButton2)).EndInit();

((System.ComponentModel.ISupportInitialize)(this.radTextBox2)).EndInit();

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

this.ResumeLayout(false);

this.PerformLayout();

}

#endregion

private Telerik.WinControls.UI.RadListControl radListControl1;

private Telerik.WinControls.UI.RadTextBox radTextBox1;

private Telerik.WinControls.UI.RadButton radButton1;

private Telerik.WinControls.UI.RadButton radButton2;

private Telerik.WinControls.UI.RadTextBox radTextBox2;

private System.Windows.Forms.Label label1;

}

ListControl

answered on 08 Sep 2011

2 answers

299 views

Filtering RadGridView with IQueryable as datasource

Hi,

I have a radgridview which has an IQueryable as datasource. When attempting to filter the radgridview using filter descriptors the fiter descriptors are shown on the grid. But the fields are not filtered. I have an idea this has something to do with the binding?

The IQueryable is generated in the DAL and returned to the BL which in turn returns it to the WinForm. There is no way to directly access the database as we can only work on the Winform.

Is it possible to filter the radgridview when it is using an untyped IQueryable as datasource?

radGridView1.DataSource = BusinessObject.getAll(); //Returns IQueryable

//Setting filter descriptors

FilterDescriptor filter = new FilterDescriptor();

filter.Operator = FilterOperator.IsEqualTo;

filter.PropertyName = "Username"t;

filter.Value = "Bob";

filter.IsFilterEditor = true;

this.radGridView1.MasterTemplate.EnableCustomFiltering = true;

this.radGridView1.MasterTemplate.EnableFiltering = true;

this.radGridView1.FilterDescriptors.Clear();

this.radGridView1.FilterDescriptors.Add(filter);

radGridView1.ShowFilteringRow = true;

GridView

answered on 08 Sep 2011

3 answers

884 views

RadMaskedEditBox simple decimal

Hey at Telerik

I would like to know how i can set the RadMaskedEditBox to accept only a decimal number.

I need the RadMaskedEditBox for coordinates and cannot limit the box to a specific number og digits before the seperator or after.

The closest i can get is by setting the MaskType of the RadMaskedEditBox to 'Numeric' and the Mask to 'n'.

As i see it 'n' and 'n2' gives the same result. isn't 'n' supposed to not limit the input.

Sincerly

Jan

MaskedEditBox

answered on 07 Sep 2011