Questions on UI for ASP.NET AJAX Forum

3 answers

242 views

[Solved] Conditional Confirm Close window

I have implemented a confirm close window for closing a RadWindow which works fine, however I want to only show the dialog if the user clicks Cancel. I have the following code:

Calling Window:

    
            function OnClientShow(sender, arg) { 
        
                sender.add_beforeClose(onBeforeClose); 
        
            } 
        
            function onBeforeClose(sender, arg) { 
        
                var oArg = arg.get_argument(); 
        
                alert(oArg.closingbutton); 
        
                if (oArg.closingbutton = "Cancel") { 
        
                    function callbackFunction(arg) { 
        
                        if (arg) { 
        
                            sender.remove_beforeClose(onBeforeClose); 
        
                            sender.close(); 
        
                        } 
        
                    } 
        
                    arg.set_cancel(true); 
        
                    radconfirm("Any unsaved data will be lost.<br /><br />Are you sure you wish to close this window?", callbackFunction, 400, 200, null, "Close this window?"); 
        
                } 
        
            }

Closing window:

    
            //Close the dialog 
        
            function closeWindow(btndesc) { 
        
                var oWnd = GetRadWindow(); 
        
                var oArg = new Object(); 
        
                oArg.closingbutton = btndesc; 
        
                oWnd.close(oArg); 
        
            }

I am getting the error Object doesn't support this property or method.

I can confirm that the text (btndesc) is "Cancel" when the function is fired, but the argument is not being received on the calling window. Any help is appreciated.

Window

answered on 22 May 2010

0 answers

69 views

Automatically deselect links that have target="_blank"

I thought I'd share some javascript code that will automatically deselect a click on a link that has target="_blank" since it is a popup window. Put in OnClientItemClicked="RadPanelBarClicked" your RadPanelBar declaration.

function RadPanelBarClicked(sender, eventArgs) {

// Dont' select links with target.

var item = eventArgs.get_item();

var target = item.get_target();

if (target)

{

item.set_selected(

false);

}

PanelBar

asked on 22 May 2010

4 answers

154 views

Persist Datagrid bindable usercontrol properties

Hello All,

i honestly tried to find if this have been asked before but to no avail.

i have a user control that is bind-able to inside a GridTemplateColumn of a datagrid, it works fine and it displays the data, the problem is when the grid is sorted for example, all the data is lost.

i think i can solve this using a hidden control inside the usercontrol, but i am not sure yet, and i would like to know if there is something i am missing

to reproduce:
create user control:

    
            <%@ Control Language="VB" AutoEventWireup="false" CodeFile="X3.ascx.vb" Inherits="X3" %> 
        
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

User control code behind:

    
            Partial Class X3 
        
                Inherits System.Web.UI.UserControl 
        
                Private _X3 As String 
        
                Public Property X3() As String 
        
                    Get 
        
                        Return _X3 
        
                    End Get 
        
                    Set(ByVal value As String) 
        
                        _X3 = value 
        
                    End Set 
        
                End Property 
        
                Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 
        
                    Label1.Text = _X3 
        
                End Sub 
        
            End Class

Page:

    
            <%@ Page Language="VB" AutoEventWireup="false" CodeFile="ControlState.aspx.vb" Inherits="ControlState" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <%@ Register Src="X3.ascx" TagName="X3" TagPrefix="uc1" %> 
        
            <html xmlns="http://www.w3.org/1999/xhtml" > 
        
            <head runat="server"> 
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                    <telerik:RadScriptManager ID="RadScriptManager1" runat="server"> 
        
                    </telerik:RadScriptManager> 
        
                <div> 
        
                    <telerik:RadGrid ID="RadGrid1" runat="server" GridLines="None" AllowSorting="True" AutoGenerateColumns="False" EnableViewState ="true" > 
        
                        <MasterTableView> 
        
                            <RowIndicatorColumn> 
        
                                <HeaderStyle Width="20px" /> 
        
                            </RowIndicatorColumn> 
        
                            <ExpandCollapseColumn> 
        
                                <HeaderStyle Width="20px" /> 
        
                            </ExpandCollapseColumn> 
        
                            <Columns> 
        
                                <telerik:GridBoundColumn UniqueName="X1" DataField="X1" HeaderText="X1"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn UniqueName="X2" DataField="X2" HeaderText="X2"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridTemplateColumn UniqueName="X3" DataField="X3" HeaderText="X3" SortExpression="X3"> 
        
                                    <ItemTemplate> 
        
                                        <uc1:X3 ID="X3_1" runat="server" X3='<%# Eval("X3") %>' /> 
        
                                    </ItemTemplate> 
        
                                </telerik:GridTemplateColumn> 
        
                                <telerik:GridBoundColumn UniqueName="X4" DataField="X4" HeaderText="X4"> 
        
                                </telerik:GridBoundColumn> 
        
                            </Columns> 
        
                        </MasterTableView> 
        
                    </telerik:RadGrid> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

Page code behind:

    
            Imports Telerik.Web.UI 
        
            Partial Class ControlState 
        
                Inherits System.Web.UI.Page 
        
                Private Sub RadGrid1_NeedDataSource(ByVal [source] As Object, _ 
        
                         ByVal e As GridNeedDataSourceEventArgs) _ 
        
                         Handles RadGrid1.NeedDataSource 
        
                    Dim list As New ArrayList 
        
                    For i As Integer = 0 To 4 
        
                        Dim v As New D 
        
                        v.X1 = "V" & i.ToString & "_X1" 
        
                        v.X2 = "V" & i.ToString & "_X2" 
        
                        v.X3 = "V" & i.ToString & "_X3" 
        
                        v.X4 = "V" & i.ToString & "_X4" 
        
                        list.Add(v) 
        
                    Next 
        
                    RadGrid1.DataSource = list 
        
                End Sub 
        
                Private Class D 
        
                    Private _X1 As String 
        
                    Public Property X1() As String 
        
                        Get 
        
                            Return _X1 
        
                        End Get 
        
                        Set(ByVal value As String) 
        
                            _X1 = value 
        
                        End Set 
        
                    End Property 
        
                    Private _X2 As String 
        
                    Public Property X2() As String 
        
                        Get 
        
                            Return _X2 
        
                        End Get 
        
                        Set(ByVal value As String) 
        
                            _X2 = value 
        
                        End Set 
        
                    End Property 
        
                    Private _X3 As String 
        
                    Public Property X3() As String 
        
                        Get 
        
                            Return _X3 
        
                        End Get 
        
                        Set(ByVal value As String) 
        
                            _X3 = value 
        
                        End Set 
        
                    End Property 
        
                    Private _X4 As String 
        
                    Public Property X4() As String 
        
                        Get 
        
                            Return _X4 
        
                        End Get 
        
                        Set(ByVal value As String) 
        
                            _X4 = value 
        
                        End Set 
        
                    End Property 
        
                End Class 
        
            End Class

Grid

answered on 21 May 2010

1 answer

119 views

Which control to show terms and conditions document in scrollable format

I have text file ( for TermsAndConditions) with all <p> , <h1>, <b> and all kid of html tags.

I want to open this file in a control like ( text area) with all html applied, how do I do this with telerik control? Which control should I use? And how should I open above text file in this control? So all css and html is applied.

All I want to do is open this file in scrollable form ( standard terms and conditions aggrement)?

Thanks!

Input

answered on 21 May 2010

1 answer

200 views

Attachments not storing properly in database

I have radUpload control in my page from which users can only upload images.

    
            <telerik:RadUpload ID="ruImage" runat="server" InitialFileInputsCount="1" ControlObjectsVisibility="None" AllowedMimeTypes="image/bmp,image/gif,image/jpeg,image/pjpeg,image/tiff,image/x-png" />

I am using the following code in my codebehind to upload the images to the database.

    
            if (ruImage.UploadedFiles.Count > 0) 
        
            { 
        
                AppImages oImage = null; 
        
                foreach (UploadedFile theFile in ruImage.UploadedFiles) 
        
                { 
        
                    string fileName = theFile.FileName; 
        
                    fileName = fileName.Substring(fileName.LastIndexOf(@"\")).Replace(@"\", ""); 
        
                    byte[] myBytes = new byte[theFile.ContentLength]; 
        
                    theFile.InputStream.Read(myBytes, 0, theFile.ContentLength); 
        
                    oImage = new AppImages(); 
        
                    oImage.AppId = appId; 
        
                    oImage.FileName = fileName; 
        
                    oImage.FileSize = theFile.ContentLength; 
        
                    oImage.FileType = theFile.ContentType; 
        
                    oImage.Attachment = myBytes; 
        
                    oImage.LastUpdatedBy = UserName; 
        
                    oImage.Insert(); 
        
                    oImage = null; 
        
                } 
        
            }

The column Attachment in the AppImages table is of type IMAGE. When I debug the code, everything is good as it should be except the content of myBytes. every single element of the array will have 0 as its value. Even when I check the database (I'm using SQL Server 2008), the content of the Attachment column will be 0x000...

Now when I try to load the images to the grid (I have GridBinaryImageColumn), I get the following error from the IE8 debugger:
Error: Sys.WebForms.PageRequestManagerServerErrorException: The provided binary data may not be valid image or may contains unknown header

When I force the page to load, I get the following error:

    
            Parameter is not valid.  
        
            Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.  
        
            Exception Details: System.ArgumentException: Parameter is not valid. 
        
            Source Error:  
        
            An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.   
        
            Stack Trace:  
        
            [ArgumentException: Parameter is not valid.] 
        
               System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData) +430 
        
               System.Drawing.Image.FromStream(Stream stream) +14 
        
               Telerik.Web.UI.ImageFilterHelper.CreateImgFromBytes(Byte[] image) +77 
        
            [ArgumentException: The provided binary data may not be valid image or may contains unknown header] 
        
               Telerik.Web.UI.ImageFilterHelper.CreateImgFromBytes(Byte[] image) +219 
        
               Telerik.Web.UI.RadBinaryImage.AutoAdjustImageElementSize(Byte[] dataValue) +26 
        
               Telerik.Web.UI.RadBinaryImage.ProcessImageData() +106 
        
               Telerik.Web.UI.RadBinaryImage.OnPreRender(EventArgs e) +27 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +108 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Control.PreRenderRecursiveInternal() +224 
        
               System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394 
        
            -------------------------------------------------------------------------------- 
        
            Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

I've searched the net for this error but coulnd't find any help. Have you guys seen anything like this?

Thanks.

Upload (Obsolete)

answered on 21 May 2010

6 answers

267 views

Problems with Input Controls in Content Area

Good Afternoon,

I'm trying to do something a bit tricky: Embed input controls within the content area.

This is a big problem in Firefox and Opera. Other browsers can handle it.

Here's what I've found:

Firefox and Opera: Content within <textarea> is simply not selectable or editable. Additionally, in Firefox, buttons don't fire their onclick event.
Internet Explorer: Clicking once selects the control. Clicking again allows you to edit or manipulate. This is acceptable.
WebKit: Works beautifully. Click inside a textarea to edit. Click a button to fire the onclick event. This is how I wish the rest worked.

I have tried all kinds of Mozilla extensions to no avail, including: -moz-user-modify: read-write; -moz-user-focus: normal; -moz-user-input: enabled; -moz-user-select: text.

Is there a way to get input controls working Firefox and Opera?

Here's some sample code:

    
            <%@ Page Language="C#" %> 
        
            <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head id="Head1" runat="server"> 
        
                <title>Untitled Page</title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                    <asp:ScriptManager ID="ScriptManager" runat="server"></asp:ScriptManager> 
        
                    <telerik:RadEditor runat="server" ID="RadEditor" Width="100%" 
        
                        Height="350px" EditModes="Design" Enabled="true"> 
        
                        <Content> 
        
                            <p>Some text</p> 
        
                            <textarea rows="5" cols="40">Text area text</textarea> 
        
                            <input type="button" onclick="alert('button clicked');" value="Press Me" /> 
        
                            <input type="checkbox" /> 
        
                            <p>More text</p> 
        
                        </Content> 
        
                    </telerik:RadEditor> 
        
                    <input type="button" onclick="alert($find('<%=RadEditor.ClientID%>').get_html(true))" value="Show HTML" /> 
        
                </form> 
        
            </body> 
        
            </html>

Editor

answered on 21 May 2010

2 answers

96 views

[Solved] Input Problem with Right To Left

Hi dear Telerik.

when i use RadInput with right to left text box, i have a bad problem:
Warning icone is in the right side and this image conflict with text.

please see attached image :

Input

answered on 21 May 2010

3 answers

111 views

[Solved] Extract recurrence dates - why won't this work?

I'm trying to take a recurrence rule string that the scheduler put in my DB, and extract a list of dates from it. I found an example, but it doesn't work. rrule always returns null. Ultimately I just need a list of dates. Thanks

    
            //this was generated by the scheduler, and I coped it to here from the DB 
        
            string ruleString = "DTSTART:20100504T000000Z  DTEND:20100505T000000Z  RRULE:FREQ=WEEKLY;COUNT=2;INTERVAL=1;BYDAY=TU";  
        
            RecurrenceRule rrule; 
        
            RecurrenceRule.TryParse(ruleString, out rrule); 
        
            if (rrule == null) 
        
            { 
        
                return; 
        
            } 
        
            DateTime test; 
        
            foreach (DateTime occurrence in rrule.Occurrences) 
        
            { 
        
                //do something with each date... 
        
            }

Scheduler

answered on 21 May 2010

1 answer

186 views

Error: Excel Export Error: 'this.ColGroup.Cols' is null or not an object

Greetings,

We've encountered a problem when trying to export grid data in Excel format.
The error we get is always:

    
            Error: 'this.ColGroup.Cols' is null or not an object

This is what we get when we enable the ShowExportToExcelButton.

Just for testing purposes, we created a button OUTSIDE the grid and placed this code in the CodeFile:

    
            Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click  
        
                    RadGrid1.MasterTableView.ExportToExcel()  
        
            End Sub

This works without a problem.

Any clue?

Grid

answered on 21 May 2010

5 answers

189 views

RIght hand arrow

Hi,

I have a request whereby the combo box should not have an error on the select item.

I have managed to find the class

.rcbArrowCellRight

and I can see that this is a table cell (for which there are two, 1 for the text and one for the arrow handle)

I want to get rid of this extra cell as we do not require it - is there any way to do this. If not, could you suggest a better control from the suite to achieve this.

Thanks

ComboBox

answered on 21 May 2010