Questions on UI for ASP.NET AJAX Forum

3 answers

205 views

Some nodes of my RadTreeView have warning images (ImageUrl property), and when I set tooltip on that nodes it is displayed only for node text, I would like to display it for images also.

TreeView

answered on 12 Feb 2009

3 answers

528 views

Get the screen resolution in code behind

Hello
Does it have a way to get the screen resolution in code behind
because in my code behind I have code like that

    
             Private Sub RadGrid_BanqueCV_DataBound(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadGrid_BanqueCV.DataBound  
        
                    Dim grid As RadGrid = TryCast(sender, RadGrid)  
        
                    Dim gridItems As Integer = grid.MasterTableView.Items.Count  
        
                    If gridItems < 5 Then 
        
                        grid.Height = 450  
        
                    Else 
        
                        grid.Height = 450 + (gridItems * 20)  
        
                    End If 
        
                    If grid.Height.Value > 650 Then 
        
                        grid.Height = 650  
        
                    End If 
        
                End Sub

But instead to have fixed values I would like to have screen resolution value to set the height.
Thanks!

General Discussions

answered on 12 Feb 2009

1 answer

188 views

RAD GRID issues

Hi

I'm hoping I can resolve my problem here, if not I'll log a support call/ ticket.

I Have an application utilising the RAD Grid, the Grid consists of 4 dropdown lists with the values being populated from reference tables inside the main data set. (The grid has auto generate columns set to false).

The issue is that Every second line (the alternate line) doesn't render text - I've right clicked and 'Viewed Source" and in the table elements for the missing lines &nbsp is displayed additionally when I click the 'edit' link for a line where the data is missing the correct values are populated in the edit form, though when I click 'edit' for a line where the data is rendered no values are populated in the dropdown lists.

My first thought was a style sheet clash however given the table elements in View Source have &nbsp I don't believe this is the cause.

Another issue I've discovered is when I click 'edit' on a line that does render when the "ReadOnly" attribute is set to 'true' the RadGrid throws an application error stating: Object reference not set to an instance of an object

I've included the html from the aspx page below - showing the Rad Grid

    
              <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="True" 
        
                    AutoGenerateColumns="False" AutoGenerateEditColumn="True" GridLines="None">  
        
                    <HeaderContextMenu EnableTheming="True">  
        
                        <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation> 
        
                    </HeaderContextMenu> 
        
                    <MasterTableView> 
        
                        <RowIndicatorColumn> 
        
                            <HeaderStyle Width="20px"></HeaderStyle> 
        
                        </RowIndicatorColumn> 
        
                        <ExpandCollapseColumn> 
        
                            <HeaderStyle Width="20px"></HeaderStyle> 
        
                        </ExpandCollapseColumn> 
        
                        <Columns> 
        
                            <telerik:GridDropDownColumn DataField="Delay_Code_ID" DataSourceID="dsdelaycodemapping" 
        
                                HeaderText="Code" ListDataMember="RRD_011_DELAY_CODE" ListTextField="Delay_DS" 
        
                                ListValueField="id" ReadOnly="True" UniqueName="column">  
        
                            </telerik:GridDropDownColumn> 
        
                            <telerik:GridDropDownColumn DataField="COAL_SYSTEM_REPORT_ID" DataSourceID="dsdelaycodemapping" 
        
                                HeaderText="Coal System" ListDataMember="RRD_008_DELAY_RESPONSIBILITY" ListTextField="DELAY_RESPONSIBILITY_NM" 
        
                                ListValueField="ID" UniqueName="column1">  
        
                            </telerik:GridDropDownColumn> 
        
                            <telerik:GridDropDownColumn DataField="REPORTING_SYSTEM_REPORT_ID" DataSourceID="dsdelaycodemapping" 
        
                                HeaderText="Reprting System" ListDataMember="RRD_008_DELAY_RESPONSIBILITY" ListTextField="DELAY_RESPONSIBILITY_NM" 
        
                                ListValueField="ID" UniqueName="column2">  
        
                            </telerik:GridDropDownColumn> 
        
                            <telerik:GridDropDownColumn DataField="QT_DELAY_CATEGORY_ID" DataSourceID="dsdelaycodemapping" 
        
                                HeaderText="QT Delay Category" ListDataMember="RRD_015_DELAY_CATEGORY" ListTextField="DELAY_CATEGORY_NM" 
        
                                ListValueField="ID" UniqueName="column3">  
        
                            </telerik:GridDropDownColumn> 
        
                        </Columns> 
        
                    </MasterTableView> 
        
                    <FilterMenu EnableTheming="True">  
        
                        <CollapseAnimation Type="OutQuint" Duration="200"></CollapseAnimation> 
        
                    </FilterMenu> 
        
                </telerik:RadGrid>

The Code behind (...this is taken from a smaller solution I created in order to re-create the problem).

    
            Imports System.Web.UI  
        
            Imports System.IO  
        
            Imports System.Xml  
        
            Imports QR.TELERIKRADGRID.DataObjects  
        
            Partial Public Class Index  
        
                Inherits SiteBasePage 'Inherits System.Web.UI.Page  
        
                Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load  
        
                    Try 
        
                        If Me.IsPostBack = False Then 
        
                            'Create an instance of our typed dataset and disable constraints.   
        
                            Dim dsDelayCodeMapping As New dssDelayCodeMapping  
        
                            dsDelayCodeMapping.EnforceConstraints = False 
        
                            'Populate the dataset  
        
                            dsDelayCodeMapping = Populate_DS(dsDelayCodeMapping)  
        
                            'sets the RAD GRID DataSource  
        
                            RadGrid1.DataSource = dsDelayCodeMapping  
        
                        End If 
        
                    Catch ex As System.Exception  
        
                    End Try 
        
                End Sub 
        
                ''' <summary>  
        
                ''' Populates the Typed dataset from an XML document.   
        
                ''' The location of the XML Document will need to be set according to the individual machine that the solution  
        
                ''' is running on Modify the "strPath" value.   
        
                ''' </summary>  
        
                ''' <param name="dsDelayCodeMapping"></param>  
        
                ''' <returns></returns>  
        
                ''' <remarks></remarks>  
        
                Private Function Populate_DS(ByVal dsDelayCodeMapping As dssDelayCodeMapping) As dssDelayCodeMapping  
        
                    'Specify the Location the XML document to read into the dataset.  
        
                    Dim strPath As String = "D:\Projects\TELERIKRADGRID\TELERIKRADGRID\Web\" 
        
                    'Read the XML Document into the dataset using the Generic readXML Function.   
        
                    dsDelayCodeMapping.ReadXml(strPath & "XMLSTRING.xml")  
        
                    Return dsDelayCodeMapping  
        
                End Function 
        
                ''' <summary>  
        
                ''' Required Function of RadGrid  
        
                ''' </summary>  
        
                ''' <param name="source"></param>  
        
                ''' <param name="e"></param>  
        
                ''' <remarks></remarks>  
        
                Private Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource  
        
                    'Create an instance of our typed dataset and disable constraints.   
        
                    Dim dsDelayCodeMapping As New dssDelayCodeMapping  
        
                    dsDelayCodeMapping.EnforceConstraints = False 
        
                    RadGrid1.DataSource = Populate_DS(dsDelayCodeMapping)  
        
                End Sub 
        
            End Class

If required I can Attach this smaller solution to any support ticket required, however I will be unable to do this until Wednesday.

Any assistance in the mean time will be greatly appreciated.

Cheers.
Daniel.

Grid

answered on 12 Feb 2009

2 answers

119 views

[Solved] Client-side DOM reference after AJAX update

I have a rad grid with a template column. The template column contains a div element which I use as a toggle to show/hide some content. I set the onclick attribute for the div tag in the grid's ItemDatabound event. The div tag's clientId is passed to the following javascript function and I have domething along the lines of :

    
            function toggleOfferItem_CSOC(divClientId)  
        
                    {  
        
                        var div = document.getElementById(divClientId);  // this is null after ajax update
        
            }

When the page first loads and the grid is bound, everything works fine. Clicking on the div runs the javascript funciton and it does it's work. However, if I update the page with Ajax (the grid doesn't get rebound), then I get a null reference for the div within the javascript function. It would seem that the ajax update is changing the DOM structure of the page and since the grid isn't rebound, the Client ID which is passed to the javascript function is no longer valid.

So... is there a way to modify my javascript function to take this change into account?

Ajax

answered on 12 Feb 2009

1 answer

198 views

[Solved] FindControl of InitInsertButton within ItemDataBound event handler

Hi
I have a RadGrid as follows:
Master (editable)
+ Detail1 (non-editable)
+ Detail2 (insert and editable)

In the MasterView is a status value. The following code works except for the FindControl of InitInsertButton.

    
            Protected Sub invoiceGrid_ItemDataBound(ByVal sender As Object, ByVal e As GridItemEventArgs)  
        
                If TypeOf e.Item Is GridDataItem Then  
        
                    Dim _item As GridDataItem = e.Item  
        
                    If (_item.OwnerTableView.Name = "InvoiceMasterView") Then  
        
                        ' ... 8 line removed, very similar to following code ...  
        
                    ElseIf (_item.OwnerTableView.Name = "InvoiceDetailAmounts") Then  
        
                        Dim _parentItem As GridDataItem = _item.OwnerTableView.ParentItem  
        
                        Dim _status As Integer = CInt(_parentItem("InvoiceStatus").Text)  
        
                        If Not (Helper.GetStatusUpdatable(_status)) Then  
        
                            Dim _ctl As Control = _item.OwnerTableView.FindControl("InitInsertButton")  
        
                            If Not _ctl Is Nothing Then  
        
                                CType(_ctl, LinkButton).Enabled = False 
        
                            End If  
        
                            Dim _editCtl As LinkButton = CType(_item("AmountsEditCommandColumn").Controls(0), LinkButton)  
        
                            If Not _editCtl Is Nothing Then  
        
                                _editCtl.Enabled = False 
        
                            End If  
        
                        End If  
        
                    End If  
        
                End If  
        
            End Sub

How do I find the InitInsertButton control in the detail2 view in the ItemDataBound event?
Phil

Grid

answered on 12 Feb 2009

1 answer

112 views

Parent, Child, retrieve DB Generated Key

I am having an issue when inserting the first child in a parent/child grid. The insert is sent to the DB and the stored procedure inserts the correct data and generates a guid for the key on the newly inserted row. I know radGrid is getting this guid back, but I can't figure out how to get it in the ItemInserted event. Code in the iteminserted:

    
                        GridEditableItem scope = e.Item as GridEditableItem; 
        
                        try 
        
                        { 
        
                           CalculateDates((Guid)scope.OwnerTableView.DataKeyValues[scope.ItemIndex]["ScopeID"]); 
        
                        }

The issue is that scope.ItemIndex is always -1 and DataKeyValues.Count == 0. How else can I extract the new key?

Grid

answered on 12 Feb 2009

2 answers

65 views

Filtercolumn no longer filters on 'enter'

This happened after upgrading to 2008.3.1314.35.

Grid

answered on 12 Feb 2009

3 answers

138 views

Bulk Update

How to implement "bulk update" operation in rad grids without storing data in session?

Grid

answered on 12 Feb 2009

1 answer

172 views

[Solved] Getting the text from a textbox control in custom edit template

Hello-

I have a RadGrid setup on my ASPX page with a custom edit template. If add a new record or edit an existing record this custom template displays with a number of text boxes. TextBox1, TexBox2, etc. I want to take the text that was entered in one of the boxes TextBox1 for example and create a physical folder with that name (text from the textbox).

I'm not sure on a few things:

1. How do i get at a textbox control in a custom template?
2. I need to be able to do this on a New Record and Update Record.

The application is to take data entered by the user to describe a photo album. I then want to create a physical folder in two locations, this will be for thumbnails and fullsize photos to be shown the enduser.

Thanks!

Grid

answered on 12 Feb 2009

1 answer

160 views

[Solved] GridButtonColumn ImageButton equivalent of Datafield?

Hi,
I'm trying to use an ImageButton column and have different images used based on the results of a query. In other words, I will have a datacolumn which will have the url of the image to display.
For example on Page_Load if this were a normal GridBoundColumn I could do

    
            if (dataColumn.ColumnName.ToString() == "myColumn") 
        
            { 
        
                 GridBoundColumn newColumn = new GridBoundColumn(); 
        
                 this.RadGrid1.MasterTableView.Columns.Add(newColumn ); 
        
                 newColumn.DataField = dataColumn.ColumnName; 
        
            }

How would I do this to set the url of a GridButtonColumn?

    
            buttonColumn.ImageUrl = dataColumn.ColumnName;

Doesn't work; how do I accomplish this and where?
Thanks,
Nick

Grid

answered on 12 Feb 2009