I have a form which contains TreeView control. I need to convert it to RadTreeView. So I replaced TreeView control with RadTreeView and TreeNode with RadTreeNode in the code. I found that the events in both are different, so tried to replace the events with similar events in RadTree.
Following are the events that I have replaced in my code :
1.
Private Sub TreeView1_AfterExpand(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterExpand
Replaced by -
Private Sub TreeView1_AfterExpand(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.NodeExpandedChanged
2.
Private Sub TreeView1_AfterCollapse(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterCollapse
Replaced by -
Private Sub TreeView1_AfterCollapse(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.NodeExpandedChanged
and included Expanded flag to check if it is expand or collapse.
Here, I noticed unwanted firing of this replaced event when compared to the old event, but I handled it using the Expanded flag.
3.
Private Sub tvMain_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvMain.AfterSelect
Replaced by -
Private Sub tvMain_AfterSelect(ByVal sender As System.Object, ByVal e As Telerik.WinControls.UI.RadTreeViewEventArgs) Handles tvMain.SelectedNodesChanged
This event gets fired twice while clicking on a node.
My main issues are,
- During the initial load of the form, the tree gets populated and at that time the select event (mentioned in point 3) fires automatically in my old project in which TreeView is used. But in the new project, during the load of the form the replaced event is not fired.
- Similarly, when I clicks a node , the replaced select event fires twice. After that I have a button in the same form which works like, when we click on a node and then click on the add button it will add a new node to the tree under the selected node. Now the functionality of the button doesnt work because, within the click function of add button, treeView1.selectedNode is 'Nothing'. Eventhough the select event is fired on clicking the node, the selectednode is 'Nothing' inside the click function of add button.
Dear,
I wonder if it is possible to consult the release history by product & control & version, next to the (already existing) release history by product & version & control?
This feature has benifits:
- see how a given control evolves in time
- quickly find if a bug/feature has been implemented by control
This request can be applied for all your products.
Kind regards,
Peter
Hi there,
We have recently found a bug on both the RadDocument and Rad Rich Text Editor. Created a RTF document via the RadRichText Editor. The RTF document contains a table. When the document is saved and loaded from the same form, it is displaying correctly, however when loaded from a different form, it seems to have shrunk and lost the column width, thus having long and skinny columns.
We have set the fixed column width on the table, however this did not seem to solve the issue.
I have attached two screenshots for reference. One with the correct looking table, and one with the long and skinny columns.
Is there a workaround, or is this a known bug?
Correct table:
Long and skinny columns:
Currently on Telerik Winforms version 2018.3.1016.40
Kind regards,
Paul
Hi everybody
I m try use the class CustomDragandDrop on radtreeview but i have a issue,
if i use the next example, i dont have any problem:
protected void BindRadTreeView()
{
DataTable dt = new DataTable();
dt.Columns.Add("Id", typeof(string));
dt.Columns.Add("Title", typeof(string));
dt.Columns.Add("ParentId", typeof(string));
string parentId = string.Empty;
string childId = string.Empty;
for (int i = 0; i < 2; i++)
{
parentId = Guid.NewGuid().ToString();
dt.Rows.Add(parentId, "Node" + i, null);
for (int j = 0; j < 5; j++)
{
childId = Guid.NewGuid().ToString();
dt.Rows.Add(childId, "SubNode" + i + "." + j, parentId);
}
}
this.radTreeView1.ChildMember = "Id";
this.radTreeView1.ParentMember = "ParentId";
this.radTreeView1.DisplayMember = "Title";
this.radTreeView1.DataSource = dt;
}
i can drag and drop correctly
but the problem is when i binding the Radtreeview
protected void llenatreeview1() {
dtTablas = dat.consultaBD();
DataTable dt = new DataTable();
dtCopi.Columns.Add("Id", typeof(string));
dtCopi.Columns.Add("Title", typeof(string));
dtCopi.Columns.Add("ParentId", typeof(string));
string parentId = string.Empty;
string Id = string.Empty;
string title = string.Empty;
foreach (DataRow row in dtTablas.Rows)
{
parentId = row["ParentId"].ToString();
Id = row["Id"].ToString();
title = row["Title"].ToString();
if (parentId == "")
dt.Rows.Add(Id, title, null);
else
dt.Rows.Add(Id, title, parentId);
}
radTreeView2.ChildMember = "Id";
radTreeView2.ParentMember = "ParentId";
radTreeView2.DisplayMember = "Title";
radTreeView2.DataSource = dt;
}
first is freeze and then appears the error.
when i drag and drop appears then next error:
System.StackOverflowException
Hi Dess,
No problem. Fully understood.
Please find the new questions attached below and kindly get back to the customer Mr Huang (conext.vincent@gmail.com).
Thanks,
Peter
------------------------
Hello, Peter,
I would kindly ask you to provide any information in the support ticket as It is the appropriate way for providing assistance by the WinForms support engineers.
Thank you for your understanding
From: Peter Qu <Youpeng.Qu@progress.com>
Sent: Thursday, April 23, 2020 6:53 AM
To: Desislava Yordanova <Desislava.Yordanova@progress.com>
Cc: 'Peggy Chen' <peggychen@accesssoft.com.tw>
Subject: FW: [Accesssoft] Telerik support
Hi Dess,
Hope you are well.
Regarding the Support Ticket 1462221 (conext.vincent@gmail.com) please find error code attached and issue description as below.
Many thanks,
Peter Qu
Inside Sales Representative, APJ
Address: 120 Spencer Street | Melbourne, VIC, 3000 | Australia
Phone: +61 413 012 003 | +86 1350 1330 973
WeChat: Progress Telerik
Website: www.telerik.com
Language: English | Mandarin Chinese
From: Peggy Chen <peggychen@accesssoft.com.tw>
Sent: Thursday, 23 April 2020 13:46
To: Peter Qu <Youpeng.Qu@progress.com>
Subject: RE: [Accesssoft] Telerik support
客戶現又補充：每次升級一個版次就會出現嚴重問題,要如何排解.
From: Peter Qu [mailto:Youpeng.Qu@progress.com]
Sent: Thursday, April 23, 2020 11:53 AM
To: Desislava Yordanova
Cc: 'Peggy Chen'
Subject: FW: [Accesssoft] Telerik support
Hi Dess,
Hope you are well.
Regarding the Support Ticket 1462221 (conext.vincent@gmail.com) please find error code attached and issue description as below.
Many thanks,
Peter Qu
Inside Sales Representative, APJ
Address: 120 Spencer Street | Melbourne, VIC, 3000 | Australia
Phone: +61 413 012 003 | +86 1350 1330 973
WeChat: Progress Telerik
Website: www.telerik.com
Language: English | Mandarin Chinese
From: Peggy Chen <peggychen@accesssoft.com.tw>
Sent: Thursday, 23 April 2020 13:46
To: Peter Qu <Youpeng.Qu@progress.com>
Subject: RE: [Accesssoft] Telerik support
From: Peter Qu [mailto:Youpeng.Qu@progress.com]
Sent: Thursday, April 23, 2020 11:43 AM
To: Peggy Chen
Subject: RE: [Accesssoft] Telerik support
Hi Peggy,
It sounds a bit too complicated for the pre sales engineer. Can you please kindly let me know the license holder email and I will issue a support ticket on his Telerik account so that the developing team can get involved.
Thanks,
Peter Qu
Inside Sales Representative, APJ
Address: 120 Spencer Street | Melbourne, VIC, 3000 | Australia
Phone: +61 413 012 003 | +86 1350 1330 973
WeChat: Progress Telerik
Website: www.telerik.com
Language: English | Mandarin Chinese
From: Peggy Chen <peggychen@accesssoft.com.tw>
Sent: Thursday, 23 April 2020 13:40
To: Peter Qu <Youpeng.Qu@progress.com>
Subject: [Accesssoft] Telerik support
Importance: High
Hi Peter,
我們在跟一個客戶討論續約問題，因為如果不續約，當下的版本是否可以一直沿用，因為這套軟體升級不會刪除舊檔案，導致很多問題出來。
因為客戶編輯好專案,也進行發行動作,但是安裝到電腦會發生錯誤,請問要在其他台電腦執行客戶的安裝該如何執行.
請回復技術問題.
軟體下進行模擬可以正常運行.
執行發行後的安裝檔
無法安裝.
附件有錯誤檔案.
Peggy
From: Peter Qu [mailto:Youpeng.Qu@progress.com]
Sent: Thursday, April 23, 2020 11:43 AM
To: Peggy Chen
Subject: RE: [Accesssoft] Telerik support
Hi Peggy,
It sounds a bit too complicated for the pre sales engineer. Can you please kindly let me know the license holder email and I will issue a support ticket on his Telerik account so that the developing team can get involved.
Thanks,
Peter Qu
Inside Sales Representative, APJ
Address: 120 Spencer Street | Melbourne, VIC, 3000 | Australia
Phone: +61 413 012 003 | +86 1350 1330 973
WeChat: Progress Telerik
Website: www.telerik.com
Language: English | Mandarin Chinese
From: Peggy Chen <peggychen@accesssoft.com.tw>
Sent: Thursday, 23 April 2020 13:40
To: Peter Qu <Youpeng.Qu@progress.com>
Subject: [Accesssoft] Telerik support
Importance: High
Hi Peter,
我們在跟一個客戶討論續約問題，因為如果不續約，當下的版本是否可以一直沿用，因為這套軟體升級不會刪除舊檔案，導致很多問題出來。
因為客戶編輯好專案,也進行發行動作,但是安裝到電腦會發生錯誤,請問要在其他台電腦執行客戶的安裝該如何執行.
請回復技術問題.
軟體下進行模擬可以正常運行.
執行發行後的安裝檔
無法安裝.
附件有錯誤檔案.
Peggy
Hi,
I want to hide some columns of the table I received from Excel on RadGridView.
Hello Guys,
Good Evening , As per your suggestions i make my custom treeview node with LiteVisualElements .
In That Node i have taken one StackLayoutElement and RoundRectShape assigned to it but still panel shows corners instead of round edges,
i tried with different properties and styles but not get succeed , so please help me out.
here i have attached image of my node and "stackLayoutElement" code too.
spnlControls = new StackLayoutElement();spnlControls.Orientation = Orientation.Horizontal;
spnlControls.NotifyParentOnMouseInput = true;
spnlControls.DrawFill = true;
spnlControls.DrawBorder = true;
spnlControls.Shape = new RoundRectShape(4);
spnlControls.BackColor = Color.Transparent;
spnlControls.BackColor2 = Color.Transparent;
spnlControls.BackColor3 = Color.Transparent;
spnlControls.BackColor4 = Color.Transparent;
spnlControls.BorderGradientStyle = GradientStyles.Solid;
Hi All,
I have made User control for custom node, in this user control i have used following controls
1 RadLabel (no of control - 3)
2 RadPanel (no of control -1)
3 PictureBox (no of Control - 4 )
4 TableLayoutPanel (no of control -3)
Means i have used total 11 controls within my user control.
Height of usercontrol = 146
Width of Usercontrol = 595
I have taken RadTreeView and above UserControl added as Node,following properties of treeview is set
this.radTreeView1.DataSource = Staff.GetStaff();
this.radTreeView1.ParentMember = "ParentID";
this.radTreeView1.ChildMember = "ID";
this.radTreeView1.DisplayMember = "Department";
this.radTreeView1.CreateNodeElement += this.OnCreateNodeElement;
this.radTreeView1.TreeViewElement.AutoSizeItems = true;
this.radTreeView1.ShowRootLines = false;
this.radTreeView1.FullRowSelect = false;
this.radTreeView1.ShowLines = true;
this.radTreeView1.LineStyle = TreeLineStyle.Solid;
this.radTreeView1.LineColor = Color.FromArgb(110, 153, 210);
this.radTreeView1.TreeIndent = 50;
this.radTreeView1.ExpandAll();
But when i run the code it shows like this means my control is not displaying and the property "AutoSizeItems" is not working.
hope for quick reply
Hi All,
Note:- I am using Bound RadTreeview. Bound with DataSource.
1 Take RadTreeview
2 Add Few nodes Like:
......Node A
......Node B
......Node C
............Node D
............Node E
3 Now Drag Node B and Drop it in Node C (As Node C's Child)
4 It throw Exception Error Msg "Collection was modified; enumeration operation may not execute."
5 Now Try to Drag Node E and Drop it in Node B, again same error occurs
6 Full error screen i attached here.
Please reply as soon as possible.
