Questions on UI for ASP.NET AJAX Forum

5 answers

354 views

NullReferenceException with Telerik.Web.UI.WebResource.axd

I have noticed that my Event Viewer is being filled up with the following warnings, complaining about NullReferenceException. Can someone tell me what could be causing this, and what can I do to fix them?

Thanks,

    
            Event Type: Warning  
        
            Event Source:   ASP.NET 2.0.50727.0  
        
            Event Category: Web Event   
        
            Event ID:   1309  
        
            Date:       3/23/2010  
        
            Time:       9:45:05 AM  
        
            User:       N/A  
        
            Computer:   WEBPC  
        
            Description:  
        
            Event code: 3005   
        
            Event message: An unhandled exception has occurred.   
        
            Event time: 3/23/2010 9:45:05 AM   
        
            Event time (UTC): 3/23/2010 2:45:05 PM   
        
            Event ID: ac0df0b9829a4b0796ff2693875efb70   
        
            Event sequence: 261544   
        
            Event occurrence: 1492   
        
            Event detail code: 0   
        
            Application information:   
        
                Application domain: /LM/W3SVC/2/Root-1-129137505216865130   
        
                Trust level: Full   
        
                Application Virtual Path: /   
        
                Application Path: C:\Inetpub\wwwroot\WEBPC\WebSite\   
        
                Machine name: WEBPC   
        
            Process information:   
        
                Process ID: 7480   
        
                Process name: w3wp.exe   
        
                Account name: NT AUTHORITY\NETWORK SERVICE   
        
            Exception information:   
        
                Exception type: NullReferenceException   
        
                Exception message: Object reference not set to an instance of an object.   
        
            Request information:   
        
                Request URL: http://www.thegreensheet.com/Telerik.Web.UI.WebResource.axd?imgid=2b66498078e24ceab80cfe456aff0d17&type=rbi   
        
                Request path: /Telerik.Web.UI.WebResource.axd   
        
                User host address: 928.54.83.66   
        
                User: default\Anonymous   
        
                Is authenticated: False   
        
                Authentication Type:    
        
                Thread account name: NT AUTHORITY\NETWORK SERVICE   
        
            Thread information:   
        
                Thread ID: 7   
        
                Thread account name: NT AUTHORITY\NETWORK SERVICE   
        
                Is impersonating: False   
        
                Stack trace:    at Telerik.Web.UI.RadBinaryImageHandler.ProcessRequestInternal()  
        
               at Telerik.Web.UI.HandlerRouter.ProcessHandler(String handlerKey, HttpContext context)  
        
               at Telerik.Web.UI.WebResource.ProcessRequest(HttpContext context)  
        
               at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()  
        
               at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

ScriptManager and StyleSheetManager

answered on 03 Jul 2011

5 answers

292 views

full page update progress

hi
i saw in some sites when i click on links or button on the page , all of the page makes gray style and disabled(freezed) while doing action until loading completed.
how we can make asp.net page like that ?
tnx

Ajax

answered on 03 Jul 2011

0 answers

98 views

Lock Search Entry After Selection from RadComboBox

Hey i want to make a functionality but i am unable to do in RadComboBox. what i am doing right now what every i write in radcombobox textfield i search some results from database and bind it to radcombocox.Now i want a functionality when i select the search result from dropdown. the text should come into text field (which is already happening) and lock the text box with X (Cancel) sign in the end.

Its a same functionality on facebook when you search your home town it gives u some options in dropdown and the moment u select it, it lock the textfield. Its hard to describe the functionality so hopefully i will get some help from community.

ComboBox

asked on 03 Jul 2011

2 answers

161 views

RadGrid Popup Edit Form with RadWindow Issue

Hi All,
I have a page in which i am using the RadGrid to get data from database using the Advanced Databinding and custome edit form shown as popup for inserting and updating the data.

The update and insert are done using the UpdateCommand and InsertCommand events.

Everything is ok...

BUT

While Updating any record or inserting a new one, and before completing the update or insert, i need to show a message for the user depending on database check for some conditions....

I used the RadWindowManager on the page that holds the grid...

The window is shown correctly depending on the conditions...BUT i need to keep the popup edit form open after showing and closing this message window... in my page the popup is closed directly when showing the Window message....

i searched the forums and i found the this can be done if i set the

e.Item.IsInEditMode =

true

in the ItemUpdated event of the grid; but this event will not fire in my case...since i knew that this event will fire only in case of automatic operations is enabled.

so my question is how to keep the popup edit form open while updating???

any comment will be helpfull...

thanks in advanced...

Asa'ad...

Grid

answered on 03 Jul 2011

1 answer

316 views

How do I get the contents of a RadEditor from code behind

Hi Guys,

I've been trying for hours to get the value of a RadEditor from code behind. Could someone please show me the syntax for doing this?

William

Editor

answered on 02 Jul 2011

3 answers

177 views

refresh fires insertcommand

Why would a page refresh fire the grid's insertcommand? If you add a new row with auto-insert enabled and then right-click and refresh the screen it fires the insertcommand again. How can I stop this behavior?

Grid

answered on 02 Jul 2011

4 answers

105 views

Couple of AjaxManager Questions

Hi,

1. My page has many controls, I have surrounded logical UI groups of controls into asp:Panels and am using this outer Panel as the updated control in the ajaxmanager configuration. Is this correct? Or do I have to define the links to all lower level controls?

i.e.

<telerik:AjaxSetting AjaxControlID="compareproductLinkButton">
                <UpdatedControls>
                    <telerik:AjaxUpdatedControl ControlID="toprowPanel" />
                    <telerik:AjaxUpdatedControl ControlID="deptLiteral" />
                    <telerik:AjaxUpdatedControl ControlID="resultsPanel" />
                    <telerik:AjaxUpdatedControl ControlID="relatedcatsPanel" />
                    <telerik:AjaxUpdatedControl ControlID="activefilterPanel" />
                </UpdatedControls>
</telerik:AjaxSetting>

... etc

The reason I wanted to check is that on a given ajax postback a literal control in one of the panels is not updating even though in debug I can see the code being run. And I am seeing a few things dissappear on certain ajax postbacks.

2. If I define a control as part of an ajaxmanager relationship then its css style at run-time drops into block level (or something happens to change our css, I assume it is surrounded by a div for ajax update), how can I stop this happening?

Thank you
Matt

Ajax

answered on 02 Jul 2011

6 answers

127 views

Reloading Treeview From Code Behind

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"

EnablePageHeadUpdate="False">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="lnkbutton">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadTreeView1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

lnkbutton is the ID of button which is in RadTreeview1 .

<telerik:RadTreeNode Value="pcomment">

<NodeTemplate>

<telerik:RadTextBox runat="server" Width="250px" ID="postcomment"></telerik:RadTextBox>

<asp:Button Text="Post" runat="server" ID="lnkbutton" onclick="lnkbutton_Click" ></asp:Button>

</NodeTemplate>

</telerik:RadTreeNode>

Code - Behind

protected void RadTreeView1_NodeExpand(object sender, RadTreeNodeEventArgs e)

{

string getc =

"SELECT  [User].Name, [User].ID, Comments.ID AS CID, Comments.Comment, Comments.ItemID, Comments.UID, [User].T28 FROM            [User] INNER JOIN Comments ON [User].ID = Comments.UID WHERE        (Comments.ItemID = 271)"

;

dt = dbClass.ReturnDT(getc);

if (dt.Rows.Count > 0)

{

int n = dt.Rows.Count;

for (int m = 0; m < n; m++)

{

RadTreeNode onDemandNode = new RadTreeNode();

onDemandNode.ImageUrl = dt.Rows[m]["T28"].ToString();

onDemandNode.Text = "<u><b><a href='Profile/profile.aspx?Id="+dt.Rows[m]["ID"].ToString()+"'>"+dt.Rows[m]["Name"].ToString()+"</a></b></u> "+ dt.Rows[m]["Comment"].ToString();

onDemandNode.ExpandMode = TreeNodeExpandMode.ClientSide;

//Add the node as a child of the currently expanded node

RadTreeView1.Nodes.FindNodeByText("Comments").Nodes.Add(onDemandNode);

}

}

     }

 protected void lnkbutton_Click(object sender, EventArgs e)

    {

       RadTextBox tb=  (RadTextBox)RadTreeView1.Nodes.FindNodeByValue("pcomment").FindControl("postcomment");

       string insertcomment = " INSERT INTO Comments (ItemID, UID, Comment) VALUES  (271, "+Session["UserId"]+", '"+tb.Text+"')";

       dbClass.DataBase(insertcomment);

      

    }

What I want is ,whenever the user clicks the button post that is the button with ID lnkbutton , the RadTreeView1 gets refreshed (without reloading the whole page again) , what should i do to achieve this ??

TreeView

answered on 02 Jul 2011

2 answers

134 views

Radgrid border problem

Hi,
When radgrid.gridlines is set to both, radgrid has double border (see attached image) on firefox, safari and chrome. But if radgrid.gridlines is set to none, the export excel file does not have border among its cells. How to solve this problem? Thanks.

Grid

answered on 02 Jul 2011

3 answers

1.0K+ views

Looping Through Rows in Rad Grid and saving

I am new to .net and Telerik controls.

I am trying to do this technique, but using the radgrid.

http://msdn.microsoft.com/en-us/library/aa992036%28VS.80%29.aspx

However, I need to loop through each row in this grid and update with the selected values.

Any help or ideas would be great.

<asp:SqlDataSource ID="SqlDataSource1" runat="server"

ConnectionString="<%$ ConnectionStrings:AR_ManagementConnectionString %>"

SelectCommand=

"SELECT * FROM [AR_QA_Details] WHERE (([iUserID] = @iUserID) AND ([sSiteID] = @sSiteID) AND ([sAcct] = @sAcct) AND ([IssueName] = @IssueName)) ORDER BY [StepNumber]"

>

<SelectParameters>

<asp:Parameter DefaultValue="111" Name="iUserID" Type="Int32" />

<asp:Parameter DefaultValue="108002" Name="sSiteID" Type="String" />

<asp:Parameter DefaultValue="295856" Name="sAcct" Type="String" />

<asp:Parameter DefaultValue="Coding" Name="IssueName" Type="String" />

</SelectParameters>

</asp:SqlDataSource>

<telerik:RadGrid ID="RadGrid1" runat="server" DataSourceID="SqlDataSource1"

GridLines="None">

<MasterTableView AutoGenerateColumns="False" DataSourceID="SqlDataSource1">

<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>

<Columns>

<telerik:GridBoundColumn DataField="Step" HeaderText="Step"

SortExpression="Step" UniqueName="Step">

<HeaderStyle Width="350px" />

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn DataField="Critical" DataType="System.Int32"

HeaderText="Critical" SortExpression="Critical" UniqueName="Critical">

<EditItemTemplate>

<asp:TextBox ID="CriticalTextBox" runat="server" Text='<%# Bind("Critical") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:CheckBox ID="CriticalCheckBox" runat="server" Checked='<%# Eval("Critical") %>' />

</ItemTemplate>

<FooterStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

<HeaderStyle Width="50px" Font-Bold="False" Font-Italic="False"

Font-Overline="False" Font-Strikeout="False" Font-Underline="False"

HorizontalAlign="Center" Wrap="True" />

<ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="Pass" DataType="System.Int32"

HeaderText="Pass" SortExpression="Pass" UniqueName="Pass">

<EditItemTemplate>

<asp:TextBox ID="PassTextBox" runat="server" Text='<%# Bind("Pass") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:RadioButton ID="PassRadioButton" GroupName="PassFailNA" runat="server" Checked='<%# Eval("Pass") %>' />

</ItemTemplate>

<FooterStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

<HeaderStyle Width="50px" Font-Bold="False" Font-Italic="False"

Font-Overline="False" Font-Strikeout="False" Font-Underline="False"

HorizontalAlign="Center" Wrap="True" />

<ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="Fail" DataType="System.Int32"

HeaderText="Fail" SortExpression="Fail" UniqueName="Fail">

<EditItemTemplate>

<asp:TextBox ID="FailTextBox" runat="server" Text='<%# Bind("Fail") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:RadioButton ID="FailRadioButton" GroupName="PassFailNA" runat="server" Checked='<%# Eval("Fail") %>' />

</ItemTemplate>

<FooterStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

<HeaderStyle Width="50px" Font-Bold="False" Font-Italic="False"

Font-Overline="False" Font-Strikeout="False" Font-Underline="False"

HorizontalAlign="Center" Wrap="True" />

<ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="NA" DataType="System.Int32"

HeaderText="NA" SortExpression="NA" UniqueName="NA">

<EditItemTemplate>

<asp:TextBox ID="NATextBox" runat="server" Text='<%# Bind("NA") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:RadioButton ID="NARadioButton" GroupName="PassFailNA" runat="server" Checked='<%# Eval("NA") %>' />

</ItemTemplate>

<FooterStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

<HeaderStyle Width="50px" Font-Bold="False" Font-Italic="False"

Font-Overline="False" Font-Strikeout="False" Font-Underline="False"

HorizontalAlign="Center" Wrap="True" />

<ItemStyle Font-Bold="False" Font-Italic="False" Font-Overline="False"

Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center"

Wrap="True" />

</telerik:GridTemplateColumn>

<telerik:GridTemplateColumn DataField="Notes" HeaderText="Notes"

SortExpression="Notes" UniqueName="Notes">

<EditItemTemplate>

<asp:TextBox ID="NotesTextBox" runat="server" Text='<%# Bind("Notes") %>'></asp:TextBox>

</EditItemTemplate>

<ItemTemplate>

<asp:TextBox ID="NotesTextBox" runat="server" TextMode="Multiline" Rows="2" Columns="50" Text='<%# Bind("Notes") %>'></asp:TextBox>

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

<asp:Button ID="SaveButton" runat="server" Text="Save" />

Grid

answered on 02 Jul 2011