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Ticket T241471
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Implementation to ITemplate not working...

created 10 years ago (modified 10 years ago)

Hi,

i have this code in my aspx:

ASPx
<dx:GridViewDataComboBoxColumn FieldName="SR_STATUS_NAME" Caption="Status" VisibleIndex="5" HeaderStyle-HorizontalAlign="Center" ReadOnly="true"  EditFormSettings-Visible="False">  

   </dx:GridViewDataComboBoxColumn>

and it in server side

Visual Basic
Protected Sub gvProjectStatusTracker_DataBound(sender As Object, e As EventArgs) Handles gvProjectStatusTracker.DataBound  
        Dim editItemtemplate = DirectCast(gvProjectStatusTracker.Columns("MASTER_SR_ID"), GridViewDataColumn).EditItemTemplate  
        If Not IsNothing(editItemtemplate) Then  
            For Each col As GridViewColumn In gvProjectStatusTracker.Columns  
                Dim colData = DirectCast(col, GridViewDataColumn)  
                If Not IsNothing(colData) AndAlso Not colData.EditFormSettings.Visible Then  
                    colData.EditItemTemplate = New TemplateEditItemReadonly()  

                End If  

            Next  
        End If  
    End Sub  

    Public Class TemplateEditItemReadonly  
        Implements ITemplate  

        Public Sub New()  

        End Sub  
        Public Sub InstantiateIn(container As Control) Implements ITemplate.InstantiateIn  
            Dim auxContainer As GridViewDataItemTemplateContainer = container  
            Dim lblFieldName As New ASPxLabel  
            lblFieldName.Text = DataBinder.Eval(container, auxContainer.Column.FieldName)  
            auxContainer.Controls.Add(lblFieldName)  
            container.Controls.Add(lblFieldName)  
        End Sub  
    End Class

but when i run and enter in edit mode my template not replace default… debug don't enter in

Visual Basic
InstantiateIn

método

my idea was use an existent template from another column represented by var above named "editItemtemplate" , but as it didn't work i implemented the recomendation… Is it possible, use a edititemtemplate from another column?

code:

ASPx
<EditItemTemplate>  
                            <%# Eval(Container.Column.FieldName)%>  
  </EditItemTemplate>
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Answers approved by DevExpress Support

created 10 years ago (modified 10 years ago)

Hello,

The purpose of this task is not clear to me. If you wish to assign the same EditItemTemplate to all data columns, I recommend you assign an instance of the TemplateEditItemReadonly class to the GridViewDataColumn.EditItemTemplate property. The InstantiateIn method will be automatically called when an ASPxGridView starts creating an edit form with column editors:

C#
Protected Sub grid_Init(ByVal sender As Object, ByVal e As EventArgs)  
    Dim g As ASPxGridView = DirectCast(sender, ASPxGridView)  
    Dim tempalte = New TemplateEditItemReadonly()  
    For Each col As GridViewDataColumn In g.DataColumns  
        col.EditItemTemplate = tempalte  
    Next col  
End Sub

I have attached a sample project to illustrate this solution.
I see that you assign the TemplateEditItemReadonly object to the EditItemTemplate property, but in the InstantiateIn method, you use a container as the GridViewDataItemTemplateContainer-type object. I am not sure if I understand your scenario correctly. If the suggested solution does not meet your requirements, would you please describe it in greater detail?

    Comments (1)
    C C
    Cristiano2s 10 years ago

      Thanks Vladimir, i was doing it on DataBound event not in Init as you have done…
      Thanks again!

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