Questions on UI for ASP.NET AJAX Forum

1 answer

142 views

AutoSuggest Close

I have an radcombobox with an autosuggest,
If no suggestions are found, than the dropdown with the suggestions doesn't close.
Is there anyway to do this?

ComboBox

answered on 24 Dec 2009

1 answer

699 views

Caching Data with RadGrid: Good or Bad Practice?

Since I'm not familiar with everything RadGrid and RadWindow can do, I'm wondering if I'm re-inventing the wheel and these controls already do some of this, or something similar.

I have some pretty static data I don't want to query often to save trips. So I thought I'd have the Cache hold the data until 20 minutes after it's no longer requested. (It seems to work, but I've never used the Cache before, so I'm not sure of the pros and cons.) Anyway, I have a RadGrid on an aspx page. Below is the example code behind against the Northwind DB. The aspx page is referenced by a RadWindow that makes it popup modally.

Like I said, I'm wondering if I'm doing more than necessary, or if I'm doing some bad/inefficient coding in regard to your controls, or even in general. Thanks for any input you can give.

    
            Imports System.Data  
        
            Partial Class MyRadGrid  
        
                Inherits System.Web.UI.Page  
        
                Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource  
        
                    Dim strSQL As String 
        
                    strSQL = "SELECT SupplierID, ContactName, City, Region, PostalCode, Country FROM Suppliers" 
        
                    Dim strCacheName As String = "SupplierData" 
        
                    Dim ds As DataSet = CType(Cache(strCacheName), DataSet)  
        
                    If ds Is Nothing Then 
        
                        Dim aDB As New AccessDataSource("~/App_Data/Northwind.mdb", strSQL)  
        
                        Dim mydv As System.Data.DataView = CType(aDB.Select(DataSourceSelectArguments.Empty), System.Data.DataView)  
        
                        Dim dt As DataTable = mydv.ToTable  
        
                        ds = New DataSet  
        
                        ds.Tables.Add(dt)  
        
                        Cache.Insert(strCacheName, ds, Nothing, Cache.NoAbsoluteExpiration, New System.TimeSpan(0, 0, 20))  
        
                    End If 
        
                    RadGrid1.DataSource = ds  
        
                End Sub 
        
            End Class

Grid

answered on 24 Dec 2009

1 answer

83 views

RadWindow Cuts Off Grid Filter Options

I've placed a grid into a RadWindow. It looks great and I love the functionality. However, If I do a filter and the resulting data is small (say only 2 rows) then when I click on the filter again, the filter options are cut off inside the window. It prevents me from turning the filter off or looking at other options, forcing me to close the window. I assume there's a way around this?

Grid

answered on 24 Dec 2009

0 answers

126 views

Problem with telerik controls after upgrade to new version

This post was removed.

TreeView

asked on 24 Dec 2009

2 answers

170 views

Could not load file or assembly error.

I am getting the following error when I deploy my application to our webserver. I have Telerik version 2009.3 1103. How do I resolve this issue?

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load file or assembly 'Telerik.Web.UI' or one of its dependencies. The system cannot find the file specified. (C:\Inetpub\wwwroot\TestApp\web.config line 113)

Source Error:

Line 111:		<httpModules>
Line 112:			<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
Line 113:			<add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" />
Line 114:			<add name="RadCompression" type="Telerik.Web.UI.RadCompression" />
Line 115:		</httpModules>

Source File: C:\Inetpub\wwwroot\TestApp\web.config Line: 113

Ajax

answered on 23 Dec 2009

1 answer

111 views

Validate a nested control

I have a RadComboBox that has a RadTreeView. I would like to make the field required and am having a little trouble putting it together in my head. I need to make sure that a non-root level node is selected in the tree. Anyone have any advice on how to accomplish this? I thinking that a RequiredFieldValidator is out of the question and I'll probably need to go the CustomValidator route.
Any help appreciated.

Here is my markup:

    
            <telerik:RadComboBox ID="ProjectRadComboBox" AllowCustomText="True" EmptyMessage="[Choose One...]" 
        
                runat="server" Width="150px">  
        
                <ItemTemplate> 
        
                    <div onclick="StopPropagation(event)">  
        
                        <telerik:RadTreeView ID="ProjectRadTreeView" runat="server" DataTextField="project_name" 
        
                            DataValueField="project_id" DataFieldID="project_id" DataFieldParentID="fk_precinct_id" 
        
                            OnClientNodeClicking="OnClientNodeClickingHandler" OnNodeExpand="ProjectRadComboBox_NodeExpand" 
        
                            Height="300px">  
        
                        </telerik:RadTreeView> 
        
                    </div> 
        
                </ItemTemplate> 
        
                <Items> 
        
                    <telerik:RadComboBoxItem runat="server" Text="[Choose One...]" Value="[Choose One...]" Selected="True" /> 
        
                </Items> 
        
            </telerik:RadComboBox>

ComboBox

answered on 23 Dec 2009

3 answers

132 views

[Solved] 2 Level Hierarchy without SQL

Hello,

I am trying to create a grid with 2-level self referencing hierarchy. However, the client does not have direct access to the database; it can only request a dataset for a given key. Is there any way to do this without looping through and loading the entire table into the dataset?

This is my current code (TCDataSet is inherited from the DataSet object):

    
            protected void loadGrid() 
        
                { 
        
                    // Get the null level type codes
        
                    TCDataSet typeCodeDataset = controller.GetTypeCode(null); 
        
                    DataView typeCodeDataview = typeCodeDataset.typecode.DefaultView; 
        
                    // Bind the RadGrid's top level view to the null level type codes 
        
                    RadGrid1.MasterTableView.DataSource = typeCodeDataview; 
        
                    RadGrid1.MasterTableView.DataKeyNames = new string[] { "type_code" }; 
        
                    RadGrid1.MasterTableView.EnableColumnsViewState = false; 
        
                    // Create datasets for sub level typecodes 
        
                    TCDataSet[] subTypeCodes = new TCDataSet[typeCodeDataview.Count]; 
        
                    DataView[] subTypeCodeViews = new DataView[typeCodeDataview.Count]; 
        
                    GridTableView[] subTypeCodeTableViews = new GridTableView[typeCodeDataview.Count]; 
        
                    for (int i = 0; i < typeCodeDataview.Count; i++) 
        
                    { 
        
                        subTypeCodes[i] = new TCDataSet(); 
        
                        subTypeCodeViews[i] = subTypeCodes[i].typecode.DefaultView; 
        
                        subTypeCodeTableViews[i] = new GridTableView(); 
        
                        subTypeCodeTableViews[i].DataSource = subTypeCodeViews[i]; 
        
                        subTypeCodeTableViews[i].DataKeyNames = new string[2] { "type_code", "type_value" }; 
        
                        RadGrid1.MasterTableView.DetailTables.Insert(i, subTypeCodeTableViews[i]); 
        
                        GridBoundColumn subColumn = new GridBoundColumn(); 
        
                        RadGrid1.MasterTableView.DetailTables[i].Columns.Add(subColumn); 
        
                        subColumn.DataField = "type_code"; 
        
                        subColumn.HeaderText = "Type Code"; 
        
                        subColumn.HeaderStyle.Width = 80; 
        
                    } 
        
                    //Column to use to create the RadGrid columns 
        
                    GridBoundColumn boundColumn; 
        
                    //type_code column 
        
                    boundColumn = new GridBoundColumn(); 
        
                    RadGrid1.MasterTableView.Columns.Add(boundColumn); 
        
                    boundColumn.DataField = "type_code"; 
        
                    boundColumn.HeaderText = "Type Code"; 
        
                    boundColumn.HeaderStyle.Width = 80;//Unit.Pixel(20); 
        
                    //type_value column 
        
                    boundColumn = new GridBoundColumn(); 
        
                    RadGrid1.MasterTableView.Columns.Add(boundColumn); 
        
                    boundColumn.DataField = "type_value"; 
        
                    boundColumn.HeaderText = "Type Value"; 
        
                    boundColumn.HeaderStyle.Width = 80;// Unit.Pixel(30); 
        
                    int gridWidth = 0; 
        
                    for (int i = 0; i < RadGrid1.MasterTableView.Columns.Count; i++) 
        
                    { 
        
                        gridWidth += (int)RadGrid1.MasterTableView.Columns[i].HeaderStyle.Width.Value; 
        
                    } 
        
                    RadGrid1.Width = gridWidth + 30; 
        
                } 
        
                protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e) 
        
                { 
        
                    int index = e.Item.ItemIndex; 
        
                    subTypeCodes[index] = controller.GetTypeCode(typeCodeDataview[index]["type_value"].ToString()); 
        
                    subTypeCodeViews[index] = subTypeCodes[index].typecode.DefaultView; 
        
                    subTypeCodeTableViews[index].Rebind(); 
        
                }

Basically what I'm trying to do here is create a dataset for every master row, and then populate it when the row is expanded. When I click the 'expand' button, the grid seems to disappear.

Grid

answered on 23 Dec 2009

1 answer

168 views

Rad Upload disappears after uploading images

I have one single page, in that all the application in terms of user control will get loaded dynamically. [By calling the LoadControl method]
On one controls I have some rad tab and their page view which also get loaded dynamically to the user control.
After clicking on one tab the images section comes up, where one can see the listing [ in RadListView]
and can upload the images as well.
This is what I have done :
<telerik:RadUpload Localization-Select="Browse" ID="RadUpload" runat="server" ControlObjectsVisibility="AddButton"
                        MaxFileInputsCount="5" />
I am saving the images to database, but before that I had to disable the ajax, to post the file. For that I had to use this Line of code : StringBuilder js = new StringBuilder();
            js = js.Append("function conditionalPostback(sender, args){");
            js.Append("if (args.get_eventTarget() == '" + buttonSubmit.UniqueID + "') {alert('hi');");
            js.Append("args.set_enableAjax(false);}}");
            ScriptManager.RegisterClientScriptBlock(Page, typeof(Page), "UploadScript", js.ToString(), true);

I have tried the same js in the aspx page with the RadCodeBlock but its not working. Anyways the main problem is after uploading images first time the file input text area and the browse button got disappears, but the add and upload button remains there.
I have tried it very hard but of no luck...
Please help

Also i thought of another way to reload the whole control again after the post back that way the upload control should treat like it has come first time, but at that time after the postback, if I want to upload more images the RadUpload.UploadedFiles returns the count 0 [Seems like my js has not effected this time]

Please help

One more thing, I have missed above is this string "RadUrid=b086b64a-9a52-4bc3-8a63-5e7565d731ea " gets appended to my url, after the upload image action very first time. Im not sure what is this. And I want to get rid of this as well.[One minor item]. Please help, its urgent. [Client wants to look at this at the earliest ]

Thanks

Upload (Obsolete)

answered on 23 Dec 2009

5 answers

146 views

Sorting a templated column

Greetings,

I'm currently in a bit of a pickle on a project.

I have a grid with the following columns:
DocID (bound column that is a string and display is false),
Type (a templated column that has an image in it),
DisplayName (bound column that is a string),
Owner (bound column that is an int that has display of false),
OwnerName (bound column that is a string),
ModifiedBy (bound column that is an int and has a display of false),
ModifiedByName (templated column with a label within it),
ModifiedDate (bound column with a datetime in it)

I sort on all columns, with exclusion of the ones with display hidden and Type. The issue I'm having is with ModifiedByDate. This column is populated with data during OnItemDataBound. It is loaded based on the ModifiedBy field's value. To populate it, I go to the database during OnItemDataBound and fill in the label that is within the column.

What I'm curious on is is there a way to sort this column? Our Data Transfer Object (DTO) doesn't have a place in it for it, plus it's been deemed that it won't ever have one either. So, my question is, how would I sort this field? Thank you for any answers.

~Chad Johnson

Grid

answered on 23 Dec 2009

2 answers

119 views

[Solved] Getting grid's filtered collection

I apologize if I am overlooking something simple or just misunderstanding how this works but is there an easy way to retrieve a radgrid's filtered collection of data once the filtering has finished? I would assume there would be a property of some sort I could grab and manipulate that had all of these items but I haven't found anything yet.

Could someone point me in the right direction on how I could get just the items filtered on a grid, once the filtering is finished on a server side post back.

Any help would be appreciated.

Thank you,

Chris McMahan

Grid

answered on 23 Dec 2009