Questions on UI for ASP.NET AJAX Forum

4 answers

211 views

Javascript error PageRequestManagerServerErrorException on Response.Redirect

I currently have a webpage that Inherits from a basePage class. Within the basePage class, I have some code to register an event handler for all unhandled errors on the web page, as seen below :

protected override void OnInit(EventArgs e){
      // Trap any unhandled exceptions and log them.
      Error += BasePage_Error;
      base.OnInit(e);
    }

private void BasePage_Error(object sender, EventArgs e){
      Exception ex = Server.GetLastError();
      int errorID = LogException(ex);
      Server.ClearError();
      Response.Redirect(Page.ResolveUrl(string.Format("~/Error.aspx?ReferenceNumber={0}", errorID)));
    }

The problem comes in after I add in an RadAjax panel to the main page and surround my current form with the AjaxPanel. If some unhandled error ends up going to BasePage_Error routine, when it goes to the Response.Redirect line I get the following javascript error on the browser:

Line: 4723
Error: Sys.WebForms.PageRequestManagerServerErrorException: Input string was not in a correct format.

The Response.Redirect command is somehow causing issues, but only when I have the AjaxPanel on the page. If I remove the panel, and run into the same issue, the Response.Redirect line works perfectly. Does anyone have an idea on what I can be doing wrong, or how to fix this issue?

Ajax

answered on 26 May 2010

2 answers

256 views

javascript error: "o is undefined"

i keep getting this error at random times. it's rarely with the same file and I can't seem to get it to happen consistently. I have no idea why it is happening but whenever it does it freezes the upload.

it happens at this line of code

"if(c(o.rowElement).parents().length==0){return;0}"

inside the telerik control's web resource

AsyncUpload

answered on 26 May 2010

2 answers

280 views

$telerik.findControl not getting selected row

I'm trying to get a reference to a RadComboBox with a nested RadTreeView inside of a RadGrid. I've been following your example at http://www.telerik.com/community/forums/aspnet-ajax/grid/client-side-find-control-problem.aspx which suggests using the findControl method:

var comboBox = $telerik.findControl(parentElement, "RadComboBox1");

but this method is only returning a reference to the first instance of the combobox in the grid, not the selected record. Seems like it would be pretty useless without someway of detecting the selected record but I cannot find any examples of how to do this. I've tried getting a handle on the selected_Items() of the grid but that isn't working for me either. I'm not the best at javascripting so it could be a syntax issue.

Here's my sample script. Currently, this code just updates the combo box text in the first row of the grid, regardless of which combobox/row i'm selecting from. The function that's failing is nodeClicking(). Any assistance would be greatly appreciated:

    
            <script type="text/javascript">  
        
            function RowDblClick(sender, eventArgs) {  
        
            sender.get_masterTableView().editItem(eventArgs.get_itemIndexHierarchical());  
        
            }  
        
            function nodeClicking(sender, args) {  
        
            if (sender.get_id().indexOf("tvAdjCategory") != -1) {  
        
            var comboBox = $find("<%= cboAdjCategory.ClientID %>");  
        
            }  
        
            else {  
        
            var radGrid = $find('<%= gvWalletTransactions.ClientID %>');  
        
            var comboBox = $telerik.findControl(radGrid.get_element(), "cboCategory");  
        
            }  
        
            var node = args.get_node()  
        
            comboBox.set_text(node.get_text());  
        
            comboBox.trackChanges();  
        
            comboBox.get_items().getItem(0).set_value(node.get_text());  
        
            comboBox.commitChanges();  
        
            comboBox.hideDropDown();  
        
            }  
        
            function StopPropagation(e)  
        
            {  
        
            if(!e)  
        
            {  
        
            e = window.event;  
        
            }  
        
            e.cancelBubble = true;  
        
            }  
        
            function OnClientDropDownOpenedHandler(sender, eventArgs) {  
        
            if (sender.get_id().indexOf("cboAdjCategory") != -1) {  
        
            var treeName = "tvAdjCategory";  
        
            }  
        
            else {  
        
            var treeName = "tvCategory";  
        
            }  
        
            var tree = sender.get_items().getItem(0).findControl(treeName)  
        
            var selectedNode = tree.get_selectedNode();  
        
            if (selectedNode)  
        
            {  
        
            selectedNode.scrollIntoView();  
        
            }  
        
            }  
        
            function OnLoad(sender, args) {  
        
            var combo = sender;  
        
            var input = combo.get_inputDomElement();  
        
            input.onkeydown = onKeyDownHandler;  
        
            }  
        
            function onKeyDownHandler(e) {  
        
            if (!e)  
        
            e = window.event;  
        
            // handle all keys except tab (keycode 9) other keys can be captured   
        
            if (e.keyCode != '9') {  
        
            e.returnValue = false;  
        
            if (e.preventDefault) {  
        
            e.preventDefault();  
        
            }  
        
            }  
        
            }   
        
            </script>

Here's a sample of my grid:

    
             <telerik:RadGrid ID="gvWalletTransactions" runat="server" AllowSorting="True" meta:resourcekey="gvTransactions" 
        
                                AutoGenerateColumns="False" skin="Vista" font-size="X-Small" GridLines="None"   
        
                                AllowPaging="True">                                          
        
                                    <MasterTableView DataKeyNames="TransactionID" GridLines="Both">  
        
                                        <Columns> 
        
                                            <telerik:GridBoundColumn DataField="TransactionID" Display="False"   
        
                                                HeaderText="TransactionID" UniqueName="TransactionID" Visible="False">  
        
                                            </telerik:GridBoundColumn> 
        
                                                <telerik:GridTemplateColumn DataField="TransactionDate" HeaderText="Date"   
        
                                                UniqueName="TransactionDate">  
        
                                                <ItemTemplate> 
        
                                                    <telerik:RadDatePicker ID="dtDate" runat="server" AutoPostBack="True" Skin="Vista" 
        
                                                        Culture="English (United States)" ShowPopupOnFocus="True" Width="60px"   
        
                                                        SelectedDate='<%# Bind("TransactionDate", "{0:d}") %>' EnableEmbeddedBaseStylesheet="False" CssClass="TextBoxAsLabel" > 
        
                                                        <Calendar UseRowHeadersAsSelectors="False" UseColumnHeadersAsSelectors="False" ViewSelectorText="x"   
        
                                                        ShowRowHeaders="false" FirstDayOfWeek="Sunday" /> 
        
                                                        <DatePopupButton visible="False" HoverImageUrl="" ImageUrl="" /> 
        
                                                        <DateInput DisplayDateFormat="M/d/yyyy" DateFormat="M/d/yyyy"   
        
                                                            EnableEmbeddedBaseStylesheet="False" CssClass="TextBoxAsLabel"  AutoPostBack="True" SelectionOnFocus="SelectAll">  
        
                                                        </DateInput> 
        
                                                    </telerik:RadDatePicker> 
        
                                                </ItemTemplate> 
        
                                                <ItemStyle HorizontalAlign="Center"/>  
        
                                            </telerik:GridTemplateColumn> 
        
                                           <telerik:GridTemplateColumn DataField="Description" HeaderText="Description"   
        
                                                UniqueName="Description">  
        
                                                <ItemTemplate> 
        
                                                    <Telerik:RadTextBox ID="txtDescription" runat="server"  width="250px" 
        
                                                        Text='<%# Bind("Description") %>' CssClass="TextBoxAsLabel" Skin="Vista" 
        
                                                        EnableEmbeddedBaseStylesheet="False" SelectionOnFocus="SelectAll" /> 
        
                                                </ItemTemplate> 
        
                                            </telerik:GridTemplateColumn> 
        
                                           <telerik:GridTemplateColumn DataField="Amount"   
        
                                                HeaderText="Amount" UniqueName="Amount" SortExpression="Amount">  
        
                                                <ItemTemplate> 
        
                                                    <telerik:RadNumericTextBox ID="txtAmount" Runat="server" Skin="Vista" 
        
                                                    Culture="English (United States)" Type="Currency" SelectionOnFocus="SelectAll" 
        
                                                    Value='<%# Bind("Amount", "{0:C}") %>' CssClass="TextBoxAsLabel" Width="50px">  
        
                                                    </telerik:RadNumericTextBox> 
        
                                                </ItemTemplate> 
        
                                                <ItemStyle HorizontalAlign="Center"/>  
        
                                            </telerik:GridTemplateColumn> 
        
                                            <telerik:GridTemplateColumn HeaderText="Category" UniqueName="Category" > 
        
                                                <ItemTemplate> 
        
                                                    <telerik:RadComboBox ID="cboCategory" runat="server" Skin="Vista" 
        
                                                    OnClientDropDownOpened="OnClientDropDownOpenedHandler"   
        
                                                    meta:resourcekey="cboCategory" Width="110px" DropDownWidth="200px">  
        
                                                        <ItemTemplate> 
        
                                                            <telerik:RadTreeView ID="tvCategory" runat="server" Skin="Vista" 
        
                                                            OnClientNodeClicking="nodeClicking" > 
        
                                                            </telerik:RadTreeView> 
        
                                                        </ItemTemplate> 
        
                                                        <Items> 
        
                                                           <telerik:RadComboBoxItem Value="0"/>  
        
                                                       </Items> 
        
                                                    </telerik:RadComboBox> 
        
                                                </ItemTemplate> 
        
                                                <ItemStyle Wrap="False" HorizontalAlign="Center"/>  
        
                                            </telerik:GridTemplateColumn> 
        
                                            <telerik:GridTemplateColumn HeaderText="Project" UniqueName="Project"   
        
                                                DataField="Project">  
        
                                                 <ItemTemplate> 
        
                                                    <telerik:RadComboBox runat="server" ID="cboProject" Skin="Vista" DropDownWidth="200px" 
        
                                                    meta:resourcekey="cboProject" AppendDataBoundItems="true" Width="100px">  
        
                                                        <Items> 
        
                                                            <telerik:RadComboBoxItem Value="0" /> 
        
                                                        </Items> 
        
                                                    </telerik:RadComboBox> 
        
                                                </ItemTemplate> 
        
                                            </telerik:GridTemplateColumn> 
        
                                            <telerik:GridTemplateColumn UniqueName="Account" HeaderText="Account"   
        
                                                DataField="ToFromAccount">  
        
                                                <ItemTemplate> 
        
                                                    <telerik:RadComboBox runat="server" ID="cboAccount" Skin="Vista" Width="100px" 
        
                                                    DropDownWidth="200px" meta:resourcekey="cboAccount" AppendDataBoundItems="true" > 
        
                                                        <Items> 
        
                                                            <telerik:RadComboBoxItem Value="0" /> 
        
                                                        </Items> 
        
                                                    </telerik:RadComboBox> 
        
                                                </ItemTemplate> 
        
                                            </telerik:GridTemplateColumn> 
        
                                            <telerik:GridTemplateColumn DataField="Flagged" UniqueName="Flagged">  
        
                                                <ItemTemplate> 
        
                                                    <asp:ImageButton ID="btnFlagged" runat="server" meta:resourcekey="btnFlagged" onclick="imgFlagged_Click" /> 
        
                                                </ItemTemplate> 
        
                                            </telerik:GridTemplateColumn> 
        
                                        </Columns> 
        
                                        <EditFormSettings UserControlName="~/TransactionPages/UserControls/TransactionDetail.ascx" EditFormType="WebUserControl"/>  
        
                                        <HeaderStyle Font-Bold="True" HorizontalAlign="Center" Font-Italic="False" Font-Overline="False" Font-Size="Medium" Font-Strikeout="False" Font-Underline="False" /> 
        
                                    </MasterTableView> 
        
                                    <ClientSettings EnableRowHoverStyle="True">  
        
                                        <Selecting AllowRowSelect="True" /> 
        
                                        <ClientEvents OnRowDblClick="RowDblClick" /> 
        
                                    </ClientSettings> 
        
                                </telerik:RadGrid>

Grid

answered on 26 May 2010

3 answers

137 views

Problem Disabling ComboBox

I wish to disable a combobox and all its items using client side script. I've read all the documentation about how I should do this but whenever I try to call the disable() method I get an error saying that the method does not exist.

I am getting the reference to the ComboBox by calling document.getElementById("<% = combo.ClientID %>") but I notice that in your examples you are using a function called $find which appears to be undocumented as I can find no description of it anywhere on the web.

If I try to use this instead of getElementByID it always returns null.

Please could you explain to me the difference between $find and getElementById and how I can get this to work.

I have tried enclosing the script in a RadScriptBlock but it made no difference.

I am using version 2008.3.1314.35 of the Rad Ajax Components

Bob Boffin

ComboBox

answered on 26 May 2010

2 answers

118 views

RadMenu on flash not rendering properly

HI Telerik Team,

I am having Rad menu, and on right hand side i am having flash content, you can see here http://www2.gsba.com/Resources/Publications/OtherPublications.aspx

Rad menu is not displaying fully, it is getting cut by flash and the full menu which is to be displayed you can see it here.http://www2.gsba.com/Resources.aspx

do you people have anything for this.

it is very urgent for me. i have some urgent release and before that i need to fix it.

see screenshot.

Thanks for your time and support.

Vivek

Menu

answered on 26 May 2010

3 answers

148 views

Custom Paging issues...

Hi,

I'm using custom paging with a RadGrid and passing a StartRow and RowCount parameters to a stored procedure to return only my desired rows. The tables I work with are very big so the whole process needs to be optimized as much as possible.

I would like to use an SqlDataReader because I've read that would offer the greatest speed, however I'm having difficulties getting the TotalRows with an SqlDataReader.

I also can't access an Output Parameter because its value isn't set until the DataReader is closed. Therefore I've added the Total Rows as an additional field on my resultset. However, if I read the first row to get the Total Rows, the DataReader moves onto the next row and it isn't displayed in the Grid.

I can get it working nicely by using an SqlDataAdapter to populate a DataTable and passing that to the grid, I just wanted to know if there was any way to get the RowCount by using the SqlDataReader and Paging.

Grid

answered on 26 May 2010

2 answers

94 views

Excell Export font name

hi

how change excel export font name.
i want change font to "tahoma" . tahoma is windows recommended for Persian language.

Grid

answered on 26 May 2010

2 answers

190 views

unexpected behaviour w/ RadTreeView and Node Templates

I have to do everything at runtime; tree nodes vary by user. I used example code to apply node templates... works as expected.
When I select a node (and get the postback) the templates are not applied. Then I select a node again (and get the postback), the template is applied... it just toggles back and forth. Code is below....

    
              Private Sub GetAccountProducts(ByVal AccountID As String, ByVal Category As String, ByRef node As Telerik.Web.UI.RadTreeNode)  
        
                    Try 
        
                        Dim objCom As New SqlClient.SqlCommand  
        
                        Dim objDA As New SqlClient.SqlDataAdapter  
        
                        Dim objDT As New DataTable  
        
                        objCom.Connection = objSLXCon  
        
                        objCom.CommandText = "select ap.ACCOUNTPRODUCTID, ap.SERIALNUMBER, ap.PRODUCTNAME " & _  
        
                            "from accountproduct ap inner join product p on ap.productid = p.productid " & _  
        
                            "where ap.accountid = '" & AccountID & "' and p.family = '" & Category & "' " & _  
        
                            "and ap.accountproductid in (select accountproductid from ADVANTAGEVISIONACCESS where contactid = '" & Request.Cookies("UserID").Value & "')" 
        
                        objDA.SelectCommand = objCom  
        
                        objDA.Fill(objDT)  
        
                        For Each dr As DataRow In objDT.Rows  
        
                            Dim AssetNode As New Telerik.Web.UI.RadTreeNode()  
        
                            AssetNode.Text = dr.Item("SERIALNUMBER").ToString  
        
                            AssetNode.Value = dr.Item("ACCOUNTPRODUCTID").ToString  
        
                            AssetNode.Attributes.Add("Level", "Asset")  
        
                            AssetNode.Attributes.Add("Model", dr.Item("PRODUCTNAME"))  
        
                            AssetNode.NavigateUrl = "Assets.aspx?Level=Asset&AssetID=" & dr.Item("ACCOUNTPRODUCTID").ToString  
        
                            Dim template As New AssetTemplate()  
        
                            template.InstantiateIn(AssetNode)  
        
                            node.Nodes.Add(AssetNode)  
        
                        Next 
        
                    Catch ex As Exception  
        
                    End Try 
        
                End Sub 
        
            Class AccountTemplate  
        
                Implements ITemplate  
        
                Public Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.InstantiateIn  
        
                    Dim label1 As New Label()  
        
                    Dim node As RadTreeNode = DirectCast(container, RadTreeNode)  
        
                    label1.ID = "accountnamelabel" 
        
                    label1.Text = node.Text  
        
                    label1.ForeColor = Drawing.Color.Black  
        
                    container.Controls.Add(label1)  
        
                End Sub 
        
            End Class 
        
            Class ContactTemplate  
        
                Implements ITemplate  
        
                Public Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.InstantiateIn  
        
                    Dim label1 As New Label()  
        
                    Dim node As RadTreeNode = DirectCast(container, RadTreeNode)  
        
                    label1.ID = "alllocationslabel" 
        
                    label1.Text = node.Text  
        
                    label1.ForeColor = Drawing.Color.Black  
        
                    container.Controls.Add(label1)  
        
                End Sub 
        
            End Class 
        
            Class FamilyTemplate  
        
                Implements ITemplate  
        
                Public Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.InstantiateIn  
        
                    Dim label1 As New Label()  
        
                    Dim node As RadTreeNode = DirectCast(container, RadTreeNode)  
        
                    label1.ID = "familynamelabel" 
        
                    label1.Text = node.Text  
        
                    label1.ForeColor = Drawing.Color.Black  
        
                    container.Controls.Add(label1)  
        
                End Sub 
        
            End Class 
        
            Class AssetTemplate  
        
                Implements ITemplate  
        
                Public Sub InstantiateIn(ByVal container As Control) Implements System.Web.UI.ITemplate.InstantiateIn  
        
                    Dim label1 As New Label()  
        
                    Dim label2 As New Label()  
        
                    Dim node As RadTreeNode = DirectCast(container, RadTreeNode)  
        
                    label1.ID = "assetnamelabel" 
        
                    label1.Text = node.Attributes("Model")  
        
                    label1.ForeColor = Drawing.Color.Black  
        
                    container.Controls.Add(label1)  
        
                    label2.ID = "assetseriallabel" 
        
                    label2.Text = " - SN: " & node.Text  
        
                    label2.ForeColor = Drawing.Color.Black  
        
                    container.Controls.Add(label2)  
        
                End Sub 
        
            End Class

TreeView

answered on 26 May 2010

6 answers

338 views

[Solved] Grid Custom Skin Grouping images

I have implemented a custom skin (basically a copy of the default with a few minor changes) for my grid. Everything works except when I group by a column.

When I group by a column I get the column name in the Group Panel but the button next to it to sort it Asc or Desc does not show the correct image. All I see is a default button with no text about 25px wide.

I can't find anywhere in the stylesheets where these images are called from. The embedded styles get the correct images. Is this a bug or can someone point me to the correct place to reference the image path for these two items.

Thanks

Grid

answered on 26 May 2010

11 answers

631 views

Remove Telerik menu from VS 2008?

I've uninstalled the controls with both the uninstaller that came with the tool as well as Windows Install Cleanup. Also uninstalled the telerik.* references from the WIndows\Assembly. Yet the Telerik menu still displays in VS 2008 without any functional links.

How do I get rid of this thing? Thanks

Roger

General Discussions

answered on 26 May 2010