Questions on UI for WinForms Forum

5 answers

174 views

[Solved] Filter problem when updated to Q2

I have a telerik grid and wrote a function to allow searching all the Grid text columns, by specifying the filter type and input, the function changes all the text columns filter expressions.

It used to work very well on Q1, in Q2 everything changed.

Function is the following, I need to know how to set filter expressions programmatically in the right way in Q2.

private void SetFilter(GridKnownFunction filterFnType, string searchInput)

{

FilterExpression filter;

string input = searchInput.Trim();

if (!string.IsNullOrEmpty(input))

{

foreach (GridViewDataColumn column in this._GridTextColumns)

{

filter = new FilterExpression(FilterExpression.BinaryOperation.OR, filterFnType, "@FilterEditor1");

filter.Parameters.Add("@FilterEditor1", input);

column.FilterDescriptor = filter;

}

else

{

this.grid_Data.MasterTemplate.FilterDescriptors.Clear();

}

GridView

answered on 13 Oct 2010

4 answers

191 views

ORMs Support

Hi Telerik

I want to know which ORMs do you support for rad grid view because i have problems with radgridview and Entity Framework
and do you support OpenAccess completely for radgridview?
I think radgridview only support typed dataset completely as ORM , is this true?

thanks alot

GridView

answered on 13 Oct 2010

5 answers

342 views

Rad Waiting Bar

Hi Telerik,

I think a circular waiting control will be a good feature to add.

thanks

General Discussions

answered on 13 Oct 2010

2 answers

320 views

[Solved] Problem with passing value to custom GridDataCellElement.

Hi

I created my custom cell and column:

Cell:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Telerik.WinControls.UI;

using System.Windows.Forms;

using System.Drawing;

using System.Diagnostics;

namespace GridViewUnboundMode

{

public class EditableCheckBoxCellElement : GridDataCellElement

{

private RadCheckBoxElement _chk;

private RadTextBoxElement _txtBox;

private RadLabelElement _lbl;

public EditableCheckBoxCellElement(GridViewColumn column, GridRowElement row)

: base(column, row)

{

}

protected override void CreateChildElements()

{

base.CreateChildElements();

_chk = new RadCheckBoxElement();

_chk.Margin = new Padding(0, 2, 0, 0);

_chk.MinSize = new Size(20, 20);

_chk.Text = string.Empty;

_chk.ToggleState = Telerik.WinControls.Enumerations.ToggleState.Off;

_chk.ToggleStateChanged += new StateChangedEventHandler(_chk_ToggleStateChanged);

_txtBox = new RadTextBoxElement();

_txtBox.Margin = new Padding(0, 2, 0, 0);

_txtBox.MinSize = new Size(10, 20);

_txtBox.Text = "sss";

_lbl = new RadLabelElement();

_lbl.Text = "Not assigned";

_lbl.Margin = new Padding(0, 4, 0, 0);

_lbl.MinSize = new Size(1, 20);

_lbl.TextWrap = false;

_lbl.Font = new Font(_lbl.Font.Name, _lbl.Font.Size, FontStyle.Italic);

_lbl.ForeColor = Color.Gray;

this.Children.Add(_chk);

this.Children.Add(_lbl);

}

void _chk_ToggleStateChanged(object sender, StateChangedEventArgs args)

{

if (_chk.ToggleState == Telerik.WinControls.Enumerations.ToggleState.On)

{

if (this.Children.Contains(_lbl))

{ this.Children.Remove(_lbl); }

this.Children.Add(_txtBox);

}

else if (_chk.ToggleState == Telerik.WinControls.Enumerations.ToggleState.Off)

{

if (this.Children.Contains(_txtBox))

{ this.Children.Remove(_txtBox); }

this.Children.Add(_lbl);

}

protected override SizeF ArrangeOverride(SizeF finalSize)

{

if (this.Children.Count == 2)

{

this.Children[0].Arrange(new RectangleF(0, 0, 20, 20));

this.Children[1].Arrange(new RectangleF(21, 0, finalSize.Width - 28, 20));

if (this.Children[1] == _lbl)

{ _lbl.MinSize = new Size(Convert.ToInt32(finalSize.Width - 28), 20); }

}

return finalSize;

}

public override object Value

{

get

{

return _txtBox.Text;

}

set

{

_txtBox.Text = value.ToString();

}

public bool IsChecked

{

get

{

return _chk.ToggleState == Telerik.WinControls.Enumerations.ToggleState.On;

}

set

{

if (value)

{ _chk.ToggleState = Telerik.WinControls.Enumerations.ToggleState.On; }

else

{ _chk.ToggleState = Telerik.WinControls.Enumerations.ToggleState.Off; }

}

Column:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Telerik.WinControls.UI;

namespace GridViewUnboundMode

{

public class EditableCheckBoxColumn : GridViewDataColumn

{

public EditableCheckBoxColumn(): base()

{

}

public override Type GetCellType(GridViewRowInfo row)

{

if (row is GridViewDataRowInfo)

{

return typeof(EditableCheckBoxCellElement);

}

return base.GetCellType(row);

}

When I create new row I do something like this:

private void btnAddNewRows_Click(object sender, EventArgs e)

{

GridViewRowInfo rowInfo = this.radGridView1.Rows.AddNew();

int columnIndex = 0;

int rowIndex = rowInfo.Index;

foreach (GridViewCellInfo cellInfo in rowInfo.Cells)

{

cellInfo.Value = string.Format("{0}-{1}", columnIndex, rowIndex);

columnIndex++;

}

The problem is that in this loop when I set GridViewCellInfo.Value to some value, property EditableCheckBoxCellElement.Value is not set to this value.

I also don`t know how to get access to EditableCheckBoxCellElement because I need to control property EditableCheckBoxCellElement.IsChecked.

How can I control values for controls that are inside my EditableCheckBoxCellElement?

Data binding is not an option in my case.

Regards

GridView

answered on 13 Oct 2010

1 answer

95 views

How to skin group panel on top of RadGrid

Hello, I can't find where to change colors for top group panel where you could drag columns to group grid. Could someone point me to right direction please?

Themes and Visual Style Builder

answered on 13 Oct 2010

4 answers

251 views

[Solved] MultiSelect and menu

Hi.

I have found an issue in RadGridView when using multiselect and menu.
What i want to do is: select multiple lines, right click on RadGridView and execute some action on each line.
Apparently no big deal, done it with this code:

namespace WindowsFormsApplication3

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private RadMenuItem mnuAdd = new RadMenuItem("Add");

private void radGridView1_ContextMenuOpening(object sender, Telerik.WinControls.UI.ContextMenuOpeningEventArgs e)

{

e.ContextMenu.Items.Add(mnuAdd);

}

private void Form1_Load(object sender, EventArgs e)

{

mnuAdd.Click += new EventHandler(mnuAdd_Click);

radGridView1.Rows.AddNew().Tag = false;

}

void mnuAdd_Click(object sender, EventArgs e)

{

foreach (GridViewRowInfo row in radGridView1.SelectedRows)

{

row.Tag = !((bool)row.Tag);

row.Cells[0].Value = row.Tag;

}

I only drag and drop a RadGridView control to my form, changed MultiSelect property to true and added a column.
Now, when i select multi lines (or just one line) i right click and the menu show up with my menu (and others... but also no big deal). If i chose my menu, the row value change from false to true and from true for false. Simple.

The real problem is when i order the column. After that, if i select more than one row and i select my menu, it is thrown this exception:
"InvalidOperationException: Collection was modified; enumeration operation may not execute."

According my visual studio the error it is in the foreach iteration, more exactly in the "in":
foreach (GridViewRowInfo row in radGridView1.SelectedRows)

Ok... its a foreach problem. I try replace the foreach with a for statement:

for (int a = 0; a < radGridView1.SelectedRows.Count; a++)

{

radGridView1.SelectedRows[a].Tag = !((bool)radGridView1.SelectedRows[a].Tag);

radGridView1.SelectedRows[a].Cells[0].Value = radGridView1.SelectedRows[a].Tag;

}

With this solution, after i select both rows and right click and select my menu, i found out that radGridView1.SelectedRows only have one row, the one where i right click and is the only one that got changed.

Think this is one bug in RadGridView (or i am doing someting really wrong...).

I would like some help/answer.

Kind Regards,

Bruno Almeida

GridView

answered on 13 Oct 2010

3 answers

226 views

[Solved] create setup when using racontrols in vb.net

hello to all

i m making a project in vb.net (window application) using radcontrols(telerik) now i want to create setup of my project but problem is that project is working fine if radcontrol_winfrom .exe is install in conputer otherwise project is not working.

so what should i have to add in the setup.

General Discussions

answered on 13 Oct 2010

3 answers

328 views

Is not TreeListView available??

I need that control but is not in Component.

Help me.

I must use it !!

Treeview

answered on 13 Oct 2010

1 answer

182 views

dropdown style

Hi,
maybe this is an ridiculous question, but I can't solve it...
I have a dropdownlist..and I setting the font size 12..then I'm running it and looks ugly like this link below:
bingung

I already tried change some property like dropdown height, etc...but doesn't solve the problem...
is there any solution??

DropDownList

answered on 13 Oct 2010

2 answers

256 views

[Solved] Rad Tabstrip control is not showing After installing Telrik winform control 2010

Hi,
Recently I have installed telerik 2010 controls for winform ,But after installing when i go to vs 2008 Ide , I cannot see the rad tabstrip control in tool box.
I tried to add all telerik dll to toolbox but still the tab strip control is not coming.

Please help me its very urgent.

Thanks,
Ajeesh

General Discussions

answered on 13 Oct 2010