or
1 answer
453 views
Does GridView use an internal in memory bitmap buffer and then bitblt or does use GDI vector api to paint itself on the screen?
Experiment: Application using RDP terminal server 6.1. Slow bandwidth, high latency connection, rdp server in europe and rdp client in USA east coast.
The grid is drawn slowly, a little box (about 100x100 pixel) appears in the upper left corner, then other boxes are slowly drawn on client screen.
Actually the same data displayed by legacy microsoft access 97 is 10x faster.
How can we improve responsiveness, paying whatever is necessary in terms of ugliness, quality, flickering, whatsoever?
Best Regards.
Experiment: Application using RDP terminal server 6.1. Slow bandwidth, high latency connection, rdp server in europe and rdp client in USA east coast.
The grid is drawn slowly, a little box (about 100x100 pixel) appears in the upper left corner, then other boxes are slowly drawn on client screen.
Actually the same data displayed by legacy microsoft access 97 is 10x faster.
How can we improve responsiveness, paying whatever is necessary in terms of ugliness, quality, flickering, whatsoever?
Best Regards.
Jack
Telerik team
answered
on
22 Nov 2012
1 answer
243 views
Hello,
Since Test Studio has no plans to support testing Telerik WinForm applications could you advice a tool or may be tricks for solving this problem?
The best regards,
Igor
Since Test Studio has no plans to support testing Telerik WinForm applications could you advice a tool or may be tricks for solving this problem?
The best regards,
Igor
Plamen
Telerik team
answered
on
22 Nov 2012
13 answers
676 views
Hi
I am new to Yelerik controls and need some help..
I am having a problem looping trough selected items in a ListBox and get the selected value of the item..
Usually i would do this in a foreach loop:
but this does not work in RadListBox control...... GetSelected method does not exist :-(
Any help in appreciated.
I am new to Yelerik controls and need some help..
I am having a problem looping trough selected items in a ListBox and get the selected value of the item..
Usually i would do this in a foreach loop:
| private ArrayList GetItems() |
| { |
| ArrayList retVal = new ArrayList(); |
| for(int i = 0; i < listBoxLanguages.Items.Count; i++) |
| { |
| if(listBoxLanguages.GetSelected(i) == true) |
| retVal.Add(i); |
| } |
| return retVal; |
| } |
but this does not work in RadListBox control...... GetSelected method does not exist :-(
Any help in appreciated.
Stefan
Telerik team
answered
on
22 Nov 2012
4 answers
447 views
The documentation does not show how to capture the events from the custom Item buttons.
http://www.telerik.com/help/winforms/listview-custom-items.html
Please can we have an example in vb.net
thanks
http://www.telerik.com/help/winforms/listview-custom-items.html
Please can we have an example in vb.net
thanks
Stefan
Telerik team
answered
on
22 Nov 2012
1 answer
385 views
Hi Telerik Team,
I am getting this error:
This error is coming on the production server. this is not coming on local or the staging server. I am using asp.net 2.0 and sql server 2008. and using telerik..is this something related to telerik..
please help..this is urgent.. i think this errror comes when there is load on the server.
I am getting this error:
,"App Excep: System.Web.HttpException: An error occurred while communicating with the remote host. The error code is 0x80070001. ---> System.Runtime.InteropServices.COMException (0x80070001): Incorrect function. (Exception from HRESULT: 0x80070001)
--- End of inner exception stack trace ---
at System.Web.Hosting.IIS7WorkerRequest.RaiseCommunicationError(Int32 result, Boolean throwOnDisconnect)
at System.Web.Hosting.IIS7WorkerRequest.ReadEntityCoreSync(Byte[] buffer, Int32 offset, Int32 size)
at System.Web.HttpRequest.GetEntireRawContent()
at System.Web.HttpRequest.FillInFormCollection()
at System.Web.HttpRequest.get_Form()
at System.Web.HttpRequest.get_Item(String key)
at Telerik.Web.UI.RadCompression.IsAjaxRequest()
at Telerik.Web.UI.RadCompression.Compress(HttpApplication application)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)Monday, November 19, 2012 at System.Web.Hosting.IIS7WorkerRequest.RaiseCommunicationError(Int32 result, Boolean throwOnDisconnect)
at System.Web.Hosting.IIS7WorkerRequest.ReadEntityCoreSync(Byte[] buffer, Int32 offset, Int32 size)
at System.Web.HttpRequest.GetEntireRawContent()
at System.Web.HttpRequest.FillInFormCollection()
at System.Web.HttpRequest.get_Form()
at System.Web.HttpRequest.get_Item(String key)
at Telerik.Web.UI.RadCompression.IsAjaxRequest()
at Telerik.Web.UI.RadCompression.Compress(HttpApplication application)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)Void RaiseCommunicationError(Int32, Boolean)System.Runtime.InteropServices.COMException (0x80070001): Incorrect function. (Exception from HRESULT: 0x80070001)",2012-11-19 19:45:51.227
This error is coming on the production server. this is not coming on local or the staging server. I am using asp.net 2.0 and sql server 2008. and using telerik..is this something related to telerik..
please help..this is urgent.. i think this errror comes when there is load on the server.
Martin
Telerik team
answered
on
22 Nov 2012
1 answer
154 views
Simple question that I was not quite able to find an answer to...
I have a binding list collection of Person objects. Each Person object has a collection of Person objects. For example, everyone is a person. Some persons have children. They are persons. They can have kids, and so on and so on.
I bound this to a tree view but only got the first level of items. I then added ParentMember and ChildMember values - these are used for a simple collection as compared to my hierarchy of same nodes thus it did not work. I then tried to use the Object Relation mode and specified a display value that hit the first level of nodes and then went to the second level - "PersonName\\PersonName". I did the same with the ValueMember. Great, I now got two levels of tree control.
The question is how to get N levels? Do I do something like "PersonName\\*" in an attempt to tell it to repeat? Do I need to do this manually rather than binding?
And lastly, I did read that Drag And Drop will NOT work with bound Trees. If that is the case then I will do all of this work manually - I would think that you could support drag and drop but would have to rely on my code to actually do the movement of the actual data structure.
I have a binding list collection of Person objects. Each Person object has a collection of Person objects. For example, everyone is a person. Some persons have children. They are persons. They can have kids, and so on and so on.
I bound this to a tree view but only got the first level of items. I then added ParentMember and ChildMember values - these are used for a simple collection as compared to my hierarchy of same nodes thus it did not work. I then tried to use the Object Relation mode and specified a display value that hit the first level of nodes and then went to the second level - "PersonName\\PersonName". I did the same with the ValueMember. Great, I now got two levels of tree control.
The question is how to get N levels? Do I do something like "PersonName\\*" in an attempt to tell it to repeat? Do I need to do this manually rather than binding?
And lastly, I did read that Drag And Drop will NOT work with bound Trees. If that is the case then I will do all of this work manually - I would think that you could support drag and drop but would have to rely on my code to actually do the movement of the actual data structure.
Peter
Telerik team
answered
on
22 Nov 2012
4 answers
845 views
I have a RadGridView with a GridViewDecimalColumn. A row has the value of 51.34. I set the DecimalPlaces property to 0 but the value still displays as 51.34. Should this not display as 51?
2 answers
250 views
I have set my RadDock MainDocumentContainerVisible = false and BorderStyle = none. But there is still a borderline on the left and top. If I set the BorderStyle to FixedSingle, the whole thing has a border, but the Left and Top still have an extra wide border. What is causing this?
Thanks,
G
Thanks,
G
1 answer
154 views
I have radgridview with data written in design time i.e, code
this.radGridView1.Rows.Add("Jjkh", 19, 2, 9, 12, 21,52, 44, 63,56, System.DateTime.Now);
this.radGridView1.Rows.Add("Jjkh", 10, 2, 9, 12, 21, 52, 44, 63, 87, System.DateTime.Now);
this.radGridView1.Rows.Add("eur", 16, 2, 9, 12, 21, 52, 44, 63, 34, System.DateTime.Now);
this.radGridView1.Rows.Add("usd", 14, 2, 9, 12, 21, 52, 44, 63, 23, System.DateTime.Now);
this.radGridView1.Rows.Add("Jjkh", 67, 81, 33, 4, 55, 66, 7, 7, 11, System.DateTime.Now);
After this i've written code for forecolor:
for (int i = 0; i < radGridView1.Rows.Count; i++)
{
for (int j = 1; j < 4; j++)
this.radGridView1.Rows[i].Cells[j].Style.ForeColor = System.Drawing.Color.White;
this.radGridView1.Rows[i].Cells[4].Style.ForeColor = System.Drawing.Color.Blue;
this.radGridView1.Rows[i].Cells[5].Style.ForeColor = System.Drawing.Color.Red;
}
But for back color, i've written in radGridView1_CellFormatting,
e.CellElement.BackColor = Color.Blue;
But the event radGridView1_CellFormatting is not binding with any method..
this.radGridView1.Rows.Add("Jjkh", 19, 2, 9, 12, 21,52, 44, 63,56, System.DateTime.Now);
this.radGridView1.Rows.Add("Jjkh", 10, 2, 9, 12, 21, 52, 44, 63, 87, System.DateTime.Now);
this.radGridView1.Rows.Add("eur", 16, 2, 9, 12, 21, 52, 44, 63, 34, System.DateTime.Now);
this.radGridView1.Rows.Add("usd", 14, 2, 9, 12, 21, 52, 44, 63, 23, System.DateTime.Now);
this.radGridView1.Rows.Add("Jjkh", 67, 81, 33, 4, 55, 66, 7, 7, 11, System.DateTime.Now);
After this i've written code for forecolor:
for (int i = 0; i < radGridView1.Rows.Count; i++)
{
for (int j = 1; j < 4; j++)
this.radGridView1.Rows[i].Cells[j].Style.ForeColor = System.Drawing.Color.White;
this.radGridView1.Rows[i].Cells[4].Style.ForeColor = System.Drawing.Color.Blue;
this.radGridView1.Rows[i].Cells[5].Style.ForeColor = System.Drawing.Color.Red;
}
But for back color, i've written in radGridView1_CellFormatting,
e.CellElement.BackColor = Color.Blue;
But the event radGridView1_CellFormatting is not binding with any method..
Anton
Telerik team
answered
on
21 Nov 2012
5 answers
583 views
Prior to using RadGridView, i made use of the new DataGridView in .NET 2.0.
consider the code below, where i successfully populate the row headers:
string[] userInputParams = new string[] {"apples","oranges",
"mangos",
"guanábana"}
for (int i = 0; i < userInputParams.Length; i++)
{
gridRows.Add();
gridRows[i].HeaderCell.Value = userInputParams[i];
}
How would i acheive this with the telerik RadGridView winform control?
thank you
consider the code below, where i successfully populate the row headers:
string[] userInputParams = new string[] {"apples","oranges",
"mangos",
"guanábana"}
for (int i = 0; i < userInputParams.Length; i++)
{
gridRows.Add();
gridRows[i].HeaderCell.Value = userInputParams[i];
}
How would i acheive this with the telerik RadGridView winform control?
thank you
Jack
Telerik team
answered
on
21 Nov 2012
