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Editor Issues On Page_Load Only

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Editor

This is a migrated thread and some comments may be shown as answers.

Shawn asked on 22 May 2009, 02:22 PM

I have an issue that I just cant seem to get correct, and I really do not understand why.

I have a page that loads some HTML from a SQL database and I want it displayed in the RadEditor control. The idea is to load the record they have marked as default on the page load, and then have a ComboBox so they can switch from record to record. The html that comes from the database doesn't have any header tags like "<html>" or "<header>", but it is well formed html with style and formatting tags like tables, paragraphs, etc...

    
                        <tr> 
                    
                                                <td align="right"> 
                    
                                                    Message Template:</td> 
                    
                                                <td width="25" align="left"> 
                    
                                                    &nbsp;</td> 
                    
                                                <td align="left"> 
                    
                                                    <telerik:RadComboBox ID="list_templates" Runat="server" Skin="Sunset"  
                    
                                                        AppendDataBoundItems="True" AutoPostBack="True" DataTextField="msg_title"  
                    
                                                        DataValueField="id"  
                    
                                                        OnSelectedIndexChanged="list_templates_SelectedIndexChanged"  
                    
                                                        DataSourceID="sqlds_MsgTemplates"> 
                    
                                                        <CollapseAnimation Duration="200" Type="OutQuint" /> 
                    
                                                    </telerik:RadComboBox> 
                    
                                                </td> 
                    
                                            </tr> 
                    
             <tr> 
        
                                    <td align="right"> 
        
                                        Message Subject:</td> 
        
                                    <td> 
        
                                        &nbsp;</td>
        
                                    <td align="left"> 
        
                                        <telerik:RadTextBox ID="txt_Sub" Runat="server" Skin="Sunset" Width="400px" Text=""> 
        
                                        </telerik:RadTextBox> 
        
                                    </td> 
        
                                </tr> 
        
                                <tr> 
        
                                    <td colspan="3"><center> 
        
                                        <telerik:RadEditor ID="editor_SEND" runat="server" BorderStyle="None"  
        
                                            EditModes="Preview" Height="400px" Skin="Sunset"  
        
                                            ToolsFile="UserControls/EditorToolbar.xml" Width="700px"> 
        
                                            <Content> 
        
            </Content> 
        
                                        </telerik:RadEditor></center> 
        
                                        <br /> 
        
                                        <br /> 
        
                                        <asp:Button ID="btn_SendMsg" runat="server" CssClass="RadDefaultButton"  
        
                                            Text="Send Message" /> 
        
                                    </td> 
        
                                </tr>

On Page Load I want to get the record (which loads successfully) and display it in the control. However on page load when I do the following, the editor is empty and it is not in preview mode - the toolbar buttons are still luminated.

    
            If Not IsPostBack Then 
        
            Try 
        
                                Using reader As SqlDataReader = Msg_Info.GetDealerTemplateByID(CInt(Request.QueryString("Record"))) 
        
                                    If reader.HasRows Then 
        
                                        reader.Read() 
        
                                        txt_Sub.Text = reader.GetSqlString(0).ToString() 
        
                                        editor_SEND.Content = reader.GetSqlString(1).ToString() 
        
                                    End If 
        
                                    reader.Close() 
        
                                End Using 
        
                            Catch ex As Exception 
        
                                'error 
        
                            End Try 
        
            End If

But then when I do this - it works fine:

    
            Protected Sub list_templates_SelectedIndexChanged(ByVal o As Object, ByVal e As Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs) 
        
            Dim msgID As Integer = list_templates.SelectedValue 
        
            Try 
        
                                Using reader As SqlDataReader = Msg_Info.GetDealerTemplateByID(msgID) 
        
                                    If reader.HasRows Then 
        
                                        reader.Read() 
        
                                        txt_Sub.Text = reader.GetSqlString(0).ToString() 
        
                                        editor_SEND.Content = reader.GetSqlString(1).ToString() 
        
                                    End If 
        
                                    reader.Close() 
        
                                End Using

                            Catch ex As Exception 
        
                            End Try 
        
                End Sub

They are identical but why doesn't the page load display it properly?

6 Answers, 1 is accepted

answered on 29 May 2009, 01:05 PM

Hello Shawn,

One possibility is that your code never gets inside the If statement at page load - after all it depends on the existence of QueryString("Record") - which might be simply missing the first time you load the page.

We do not have your complete code, so this is simply a speculation.

In case you have a problem, the original suggestion is still valid - please make sure you are able to successfully load the content you need in a regular <asp:TextBox> - just for test purpose! The problem that you are having seems to be in the logic of your code, rather than in the editor - as you say that the same code, when executed in the OnSelectedIndexChanged event works fine.

All the best,
Tervel
the Telerik team

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answered on 01 Jun 2009, 07:14 AM

I am having a similar problem. I am also loading HTML from SQL. I set the editor's Edit Mode to HTML.
It is also wired to a DropDownList. On the first post back I see nothing in the editor, although it tells me there are 24 words and 199 characters. Once I choose ANYTHING else from the dropdown, any subsequent postback shows the HTML properly in the radeditor. I can't see what the radeditor is doing differently beyond the initial page load. I am also trying to control the height of the radeditor so maybe that has something to do with it...

I will do more testing.

** Update: I have figured out my issue. I set EditModes="HTML" because I only want to show naked HTML in the editor.
This causes the editor to not only be blank on the first load, but also I cannot even click in the empty box and type.
Am I wrong in assuming that I can limit the edit mode to ONLY HTML?
It's possible that this is what Shawn is doing as well?

Chris