Questions on UI for WinForms Forum

1 answer

259 views

Hello,

I was unchecking a cell programmatically and was expecting the same behavior as when I uncheck it through the UI, but it seems that the header checkbox is not updated when you modify a cell's value programmatically:

private void RadForm1_Load(object sender, EventArgs e)

{

radGridView1.AllowSearchRow = true;

radGridView1.TableElement.SearchHighlightColor = Color.Orange;

radGridView1.AutoExpandGroups = true;

DataTable dt = new DataTable();

dt.Columns.Add("test", typeof(bool));

dt.Rows.Add(true);

radGridView1.DataSource = dt;

((Telerik.WinControls.UI.GridViewCheckBoxColumn)radGridView1.Columns[0]).EnableHeaderCheckBox = true;

((Telerik.WinControls.UI.GridViewCheckBoxColumn)radGridView1.Columns[0]).Width = radGridView1.Width - 50;

radGridView1.TableElement.Update(Telerik.WinControls.UI.GridUINotifyAction.Reset); //force header checkbox to check

radGridView1.TableElement.ScrollTo(15, 0);

}

private void radButton1_Click(object sender, EventArgs e)

{

radGridView1.Rows[0].Cells[0].Value = false;

}

I have tried adding radGridView1.TableElement.BeginUpdate() to the beginning & radGridView1.TableElement.EndUpdate() to the end of radButton1_Click, along with radGridView1.TableElement.Update(Telerik.WinControls.UI.GridUINotifyAction.ExpandedChanged) & radGridView1.TableElement.Update(Telerik.WinControls.UI.GridUINotifyAction.Reset) immediately after changing the cell's value, but all of these lines seem to invalidate the RadGridView in one way or another. They cause the search row's buttons to flicker and scroll the RadGridView up to the top.

Is there a solution to this problem that will result in behavior similar to checking/unchecking a cell using the UI?

Thank you!

GridView

answered on 02 May 2016

1 answer

320 views

How to apply this code into Telerik radListView?

Im trying to use this code to get each listview item with the default system's icon. Can get it to work with common listview, but not with radListView. Any idea on how to make it work?

ListView listView1;

ImageList imageList1;

public void ExtractAssociatedIconEx()

{

// Initialize the ListView, ImageList and Form.

listView1 = new ListView();

imageList1 = new ImageList();

listView1.Location = new Point(37, 12);

listView1.Size = new Size(151, 262);

listView1.SmallImageList = imageList1;

listView1.View = View.SmallIcon;

this.ClientSize = new System.Drawing.Size(292, 266);

this.Controls.Add(this.listView1);

this.Text = "Form1";

// Get the c:\ directory.

System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(@"c:\");

ListViewItem item;

listView1.BeginUpdate();

// For each file in the c:\ directory, create a ListViewItem

// and set the icon to the icon extracted from the file.

foreach (System.IO.FileInfo file in dir.GetFiles())

{

// Set a default icon for the file.

Icon iconForFile = SystemIcons.WinLogo;

item = new ListViewItem(file.Name, 1);

iconForFile = Icon.ExtractAssociatedIcon(file.FullName);

// Check to see if the image collection contains an image

// for this extension, using the extension as a key.

if (!imageList1.Images.ContainsKey(file.Extension))

{

// If not, add the image to the image list.

iconForFile = System.Drawing.Icon.ExtractAssociatedIcon(file.FullName);

imageList1.Images.Add(file.Extension, iconForFile);

}

item.ImageKey = file.Extension;

listView1.Items.Add(item);

}

listView1.EndUpdate();

}

ListView

answered on 02 May 2016

5 answers

55 views

[Solved] Use Attribut for HeaderText with AutoGenerateColumns

Hello,

I would like use attribut to rename headercolum with AutoGenerateColumns .

Like :

[Description("Employ Number")]

public int EmployeeId { get; set; }

Possible ?

thank you

GridView

answered on 02 May 2016

1 answer

232 views

right click context menu of edit & delete

Delete only this occurance: calls update event - I want to change it to delete event

where do I find right click context menu of edit & delete and its event bindings

Scheduler and Reminder

answered on 02 May 2016

19 answers

301 views

radScheduler Edit Appointment Form Size

Having problem in Edit Appointment Form Size
can some one help me. .

Just Click the attached file

Thanks

Windows 7 Enterprise SP1
En-PH
.Net 4.5
RadControls (Q1 2013) v2013.1.220.40 Dev

Scheduler and Reminder

answered on 02 May 2016

3 answers

386 views

[Solved] RadGrid Scrollbar Theme

Hello,

I have created a custom theme for our application. I have themed the RadGridView and the RadScrollbars. The issue I have is the scrollbars on the grid.do not respect the theme that was created for the scrollbars. The scrollbar theme does not have dark borders around all of the objects, they are light gray. Yet the grid does not have the light borders. Is these something I am missing?

There is a screen shot attached.

Thanks,

Ben

Themes and Visual Style Builder

answered on 02 May 2016

4 answers

411 views

Selecting GroupRows

Hello,

Let me start with what my overall goal is, just in case I'm taking the completely wrong approach to this:
I have multiselect turned on on my RadGridView. I would like to allow a user to quickly select all the ChildRows of a group by just clicking on that specific GroupRow. I would also like to allow them to select multiple groups at the same time by holding shift or ctrl. This could be a combination of ChildRows and GroupRows.

Here's what I've tried doing:
1. Using the SelectionChanged event. When I select a GroupRow, the SelectedRows.Count property of my RadGridView is 0 (ie the IsSelected property of the GroupRow that I just selected is still false). I could use the CurrentRow property and just set all of the ChildRows of the current GroupRow to selected, but if the user holds down shift and selects many GroupRows at once, this will only catch the last one.

2. Using the CurrentRowChanged event. I'm not able to use this for the same reason as above: I can only select the ChildRows of the GroupRow that is last in the selection list.

3. Using the SelectionChanging event. Surprisingly, only a single row exists in e.Rows, despite me selecting multiple GroupRows.

So I'm left with CurrentRowChanging. With this event, I'm given the OldRow and the NewRow, so it is (probably) possible to determine if the user is holding down ctrl or shift, determine whether the user has filtered or sorted the rows, and then manually select each ChildRow under each GroupRow based on this logic, but that just seems a little obscure and unnecessary.

Here is my code (there's nothing to it)... I tried programatically selecting the 2nd group row as well, but the property will not set:

private void RadForm1_Load(object sender, EventArgs e)

{

DataTable dt = new DataTable();

dt.Columns.Add("col1", typeof(string));

dt.Columns.Add("col2", typeof(int));

dt.Rows.Add("group1", 0);

dt.Rows.Add("group1", 1);

dt.Rows.Add("group1", 2);

dt.Rows.Add("group1", 3);

dt.Rows.Add("group2", 0);

dt.Rows.Add("group2", 1);

dt.Rows.Add("group3", 0);

dt.Rows.Add("group3", 1);

dt.Rows.Add("group4", 0);

dt.Rows.Add("group5", 1);

dt.Rows.Add("group6", 0);

dt.Rows.Add("group7", 1);

radGridView1.DataSource = dt;

radGridView1.GroupDescriptors.Add(new Telerik.WinControls.UI.GridGroupByExpression("col1 GROUP BY col1"));

radGridView1.Groups[1].GroupRow.IsSelected = true;

}

Thank you!

GridView

answered on 02 May 2016

1 answer

182 views

[Solved] RadMenu bar with image

Hello,

Is it possible to put an image on a RadMenu bar, and have it aligned all the way to the right? You would have your standard menus (File, Edit, Help) on the left, and at the other end place a logo image.

Thanks,

George

Menu