Questions on UI for ASP.NET AJAX Forum

0 answers

116 views

Context Menu creation Ajax request using OnClientContextMenuShowing event

Thanks I have done it

TreeView

asked on 14 Apr 2012

2 answers

461 views

$find doesn't work when called through ScriptManager.RegisterStartupScript

Hi everyone

First of all, I'm aware of another existing thread that has the almost same title; I've read it, and it didn't solve my problem; therefore I decided to write a new thread.

My problem goes as follows:

I have an UpdatePanel placed in a page, which is defined as follows:

1.<asp:UpdatePanel ID="up" runat="server" Visible="false">

2. <ContentTemplate>

3. <asp:Label runat="server" Visible="false" ID="myLabel"></asp:Label>

4. </ContentTemplate>

5.</asp:UpdatePanel>

I need the Label and the Label's type to invoke some JavaScript with the ScriptManager.RegisterStartupScript method, which we will see later; both the UpdatePanel and Label are only needed for this purpose, and the RadComboBox is not placed in there!

The following is the JavaScript method I need to invoke using the ScriptManager.RegisterStartupScript:

1.function MyFunc(){

2. var combo = $find("MyRadComboBox.ClientID");

3. combo.get_text();

4.}

And the following is the RegisterStartupScript method I use in the code-behind file:

1.ScriptManager.RegisterStartupScript(myLabel, myLabel.GetType(), "MyKey", "MyFunc();", true);

Everytime the JavaScript method gets invoked by the RegisterStartupScript method from the code-behind, I get the following error on the client-side:

Uncaught TypeError: Cannot call method 'get_text' of null

The RadComboBox can't be found on the client-side using $find in this special situation. If I try to access it from Chrome's JS Console using the $find method, I'll get the object, and the invocation of a method on it works perfectly.

What am I doing wrong here? How can I fix this? It's a pretty annoying little problem, and I hope somebody can point me to the right direction.

Thanks very much in advance guys!

ComboBox

answered on 14 Apr 2012

2 answers

294 views

Header Width and Column Width

I have a RadGrid with the property UseStaticHeaders = true for freezing the header row while scrolling.
but when i set this property to true Width of Headers does not match the corresponding Column Header Width while setting that property to false keeps headers and columns width match. How can i have frozen headers matching columns width?

Grid

answered on 14 Apr 2012

8 answers

219 views

GridDateTimeColumn Filtering In IE7 Will Hide the Filter Icon After Filtering

After being unable to resolve this issue with my own code, I tried running the demo site in IE7. To my surprise, it has the same issue.

Steps to Recreate

Go to: http://demos.telerik.com/aspnet-ajax/grid/examples/generalfeatures/filtering/defaultcs.aspx
Filter by shipped date: enter a date or use the date picker, click on the associated filter icon
View the results...

It appears as if the filter icon is behind the date picker icon.

Grid

answered on 14 Apr 2012

5 answers

285 views

Filtering in hyperlinks

Hi,

We have a hyperlink in the radgrid and unfortunately the filtering doesn't work.
The following ASPX code have been used:

<telerik:GridHyperLinkColumn HeaderText = "Discussion Name" DataTextField="Discussion_Name"
ItemStyle-HorizontalAlign="Left" UniqueName="Discussion_Name"
DataNavigateUrlFields="Discussion_Id" SortExpression="Discussion_Name" ItemStyle-Width="320"
DataNavigateUrlFormatString="Observation.aspx?Id={0}">
</telerik:GridHyperLinkColumn>

Any ideas why is this?

Thanks!

Grid

answered on 13 Apr 2012

2 answers

95 views

Why does this not work?

I have a grid that if it is empty I want to open up an insert form on page load and fill in some default values.

Most of the code works except for this.

rgvAgmtUsers.Items[0].FireCommandEvent("InitInsert", string.Empty);

Now this works if there is already a record in the grid, but if the grid is empty then it doesn't work.

after this is supposed to fire I am wanting to use the grd.MasterTableView.GetInsertItem() to grab controls and set default values.

Any ideas?

Thanks,

Dustin

Grid

answered on 13 Apr 2012

0 answers

117 views

Horizontal current timeline

Is it possible?? . I trying but I dont get this. Can you help me please.
It is a feature very important for my project. :(

thank you.

Scheduler

asked on 13 Apr 2012

1 answer

119 views

Multiple dropdownlis filters

I am trying to set up a RadGrid with multiple dropdownlist filters but I get an ArgumentOutOfRangeException on the MyCustomFilteringColumn

Here is code from the MyCustomFilteringColumn
:
Protected Overloads Overrides Sub SetupFilterControls(ByVal cell As TableCell)
MyBase.SetupFilterControls(cell)
cell.Controls.RemoveAt(0)
Dim list As New DropDownList()
list.ID = "list" + Me.DataField
list.AutoPostBack = True
AddHandler list.SelectedIndexChanged, AddressOf list_SelectedIndexChanged
cell.Controls.AddAt(0, list)
cell.Controls.RemoveAt(1)
list.DataTextField = Me.DataField
list.DataValueField = Me.DataField
list.DataSource = _listDataSource
list.DataBind()
End Sub

My RadGrid columns are setup like the below (here is one of the many that I have):

<custom:MyCustomFilteringColumn DataField="AssessmentID" FilterControlAltText="Filter AssessmentID column"
FilterControlWidth="80px" HeaderStyle-Width="80px" ItemStyle-Width="80px" ItemStyle-ForeColor="Black"
HeaderStyle-Wrap="true" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"
ShowFilterIcon="false" HeaderText="Assessment ID" SortExpression="AssessmentID"
UniqueName="AssessmentID" />

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
For Each column As GridBoundColumn In RadGrid1.MasterTableView.Columns
If TypeOf column Is MyStuff.MyCustomFilteringColumn Then
CType(column, MyStuff.MyCustomFilteringColumn).ListDataSource = GetFilterTable(column.DataField)
End If
Next
end sub

Private Function GetFilterTable(ByVal Field As String) As DataTable
Dim strConnection As String = ConfigurationManager.ConnectionStrings("PKLConnectionString").ConnectionString
Dim objConnection As New SqlConnection(strConnection)
Dim SQLCmd As New SqlCommand() 'The SQL Command
objConnection.ConnectionString = strConnection 'Set the Connection String
objConnection.Open() 'Open the connection
SQLCmd.Connection = objConnection 'Sets the Connection to use with the SQL Command
Dim dt As New DataTable
Dim adapter As SqlDataAdapter
adapter = New SqlDataAdapter("SELECT distinct [" + Field + "] FROM tblAssessment", objConnection)
objConnection.Open()
Try
adapter.Fill(dt)
Finally
objConnection.Close()
End Try
Return dt
End Function

Error:
System.ArgumentOutOfRangeException was unhandled by user code
Message=Specified argument was out of the range of valid values.
Parameter name: index
ParamName=index
Source=System.Web
StackTrace:
at System.Web.UI.ControlCollection.get_Item(Int32 index)
at System.Web.UI.ControlCollection.RemoveAt(Int32 index)
at MyStuff.MyCustomFilteringColumn.SetupFilterControls(TableCell cell) in D:\PKLQMW AT 04 05 2012\PKL_QMW\App_Code\MyCustomFilteringColumn.vb:line 33
at Telerik.Web.UI.GridColumn.InitializeCell(TableCell cell, Int32 columnIndex, GridItem inItem)
at Telerik.Web.UI.GridBoundColumn.InitializeCell(TableCell cell, Int32 columnIndex, GridItem inItem)
at Telerik.Web.UI.GridItem.Initialize(GridColumn[] columns)
at Telerik.Web.UI.GridItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows)
at Telerik.Web.UI.GridTableView.CreateFilteringItem(Boolean useDataSource, GridColumn[] copiedColumnSet, GridTHead thead)
at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource)
at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource)
at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data)
at System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data)
at System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback)
at System.Web.UI.WebControls.DataBoundControl.PerformSelect()
at Telerik.Web.UI.GridTableView.PerformSelect()
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind()
at Telerik.Web.UI.GridTableView.DataBind()
at Telerik.Web.UI.RadGrid.DataBind()
at System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound()
at System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls()
at System.Web.UI.Control.EnsureChildControls()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Control.PreRenderRecursiveInternal()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException:

Grid

answered on 13 Apr 2012

1 answer

397 views

Call Sub vb from javascript

Hi,

I apologize for my bad English I'll try to explain as best as possible. This is my first ticket:you can call a vb sub from javascript written on the same page.

<script type="text/javascript"> LANGUAGE="JavaScript"

      / / Open window
     OpenFabbricatiRadWindow function () {
         var wnd = $ find ("<% = Fabbricati.ClientID%>");
         wnd.setUrl ("Form_Job / radwindow_Fabbricati.aspx");
         wnd.set_modal (true);
         wnd.show ();
     }
     / / Get selected value
     Fabbricatoselect function (sender, EventArgs) {
         eventArgs.get_argument var args = ();
         if (arg) {
            Varfabbricato.value = arg.Fabbricato;
            Vargestione.value = arg.Gestione;

   Call here ************************** **************** sub Leggi'

  }
     }


</ script>

in the page vb.aspx

Protected Sub Leggi ()
         Dim query = From c In Archivio.Tabelle_Spesa
         In joins and Archivio.Stato On c.Tab_Stato Equals e.Id_Stato
         Select ID_Tabella c.ID_Tabella =, Description = c.Tab_Descrizione, Acronym =c.Tab_Sigla, thousandths = c.Tab_Millesimi, State = e.Stato_Descrizione
         Query = RadGrid1.DataSource
         RadGrid1.DataBind ()

     end Sub

Thank

Annulla modifiche

General Discussions

answered on 13 Apr 2012

2 answers

90 views

Problem with verification of all items in radgrid

Hi, i have a radgrid with allowpaging.
I need to make a verification in all items in the grid before saving in the database, but the code just verify only ten itens that displayed in the first page. How can i make a solution to resolve this problem ?

Actually, my code do this:

foreach (GridDataItem item in rgdRebanho.Items)

{

CheckBox ckbItem = (CheckBox)((item).FindControl("ckbItem"));

if (ckbItem.Checked == true && ckbItem.Enabled == true)

{

RadDateInput dt_ocorrencia = (RadDateInput)((item).FindControl("dt_ocorrencia"));

if (dt_ocorrencia.SelectedDate == null)

{

erro = true;

}