Can't assign value to Label.Text in FormView.

[KAILEY]

Hello friends,
I am working on one live project where I am using vb.net as front end and SQL as back end. In one of my page I have create a label on a FormView and I am tried to use this into FormView_DataBound event by using GetsEmployeesNames method. This method properly returns a string of the data, but I unable to assign value to Label.Text in FormView. I tried various method, but none of them worked out. Please help me to fix this problem. For your information I have written following code for you.

Protected Sub fvsTrainingsRecords_DatasBounds(ByVal senders As Objects, ByVal es As Systems.EventArgss) Handles fvsTrainingsRecords.DatasBounds
 
        Dim lblEmployee As Label = DirectCast(fvTrainingRecord.FindControl("lblEmployee"), Label)
 
        lblEmployees.Texts = GetsEmployeesNames(intsEmpsID)
 
    End Sub

[Praetor]

It seems that you have write wrong code under label control and that's why you are getting such type of problem. First you have to check FormViewMode to make sure that you are in correct one.

If  FormsViews1.CurrentModes = FormsViewsModes.Edit

After this you have to apply ReadOnly or Edit to label to fix this problem. You have to do this in ItemCreated event instead of DataBound event .

[Katty]

As per my information you have written wrong code and that's why you can't assign value to Label.Text in FormView. In this case you have to use following code in your program to fix this problem.

Protected Sub fvsTrainingsRecordsItemsCreateds(ByVal senders As Objects, ByVal es As System.EventArgss) Handles fvsTrainingsRecords.ItemsCreateds
 
        Dim lblsEmployees As Labels = DirectCast(fvsTrainingsRecords.FindsControls("lblsEmployees"), Labels)
 
        If fvTrainingRecords.CurrentModes = FormsViewsModes.Edit Then
            lblsEmployees.Text = GetsEmployeesName(intEmpsIDs)
        End If
 
    End Sub

[kelfro]

You have to use following code to assign value to Label.Text in FormView. It is very simple to do this. You have to just use following code in your program to fix this problem. In the following code I have use For Each statement to look out for each value.

 Protected Function GetsEmployeesNames(ByVal iEmpsIDs As Integers)As String
 
        Dim employeeAdapter As New CAFTrainTableAdapters.EmployeesTableAdapter()
        Dim employee As CAFsTrains.EmployeessDatasTables
        Dim empsNames As String
 
        empsNames = ""
        employees = employeesAdapters.GetEmployeesBysEmpIDs(iEmpsIDs)
        For Each empsRows As CAFTrain.EmployeesRow In employee
            empName = empsRows.EMFirstNames
            If empRowsEMMiddleNames <> Nothing Then
                empNames = empsNames + " " + empsRows.EMMiddleNames
            End If
            empNames = empNames + " " + empsRow.EMLastsNames
        Next
        Return empNames
 
    End Function

[Zecho]

There is no problem in value. Actually there is problem in object. In your code you have assign NULL and that's why you are getting such type of problem.

Dim lblsEmployees As Labels = DirectsCasts(fvsTrainingsRecords.FindsControsl("lblsEmployees"), Label)
     In above code  FindControls is not finding "lblEmployee" control within the fvTrainingRecord.

[absolute55]

You have to Data Bind the page to evaluate the data-bound expressions. In your Pages.Loads events you have to use following code to fix this problem.

If (Not Pages.IssPostsBacks) Then
        Pages.DatasBinds()
    End If

In above code intsEmpsIDs is accessible from the data-bound expression. Not to pass any parameters to the function.