RADGRID - ADDING CONTROLS DYNAMICALLY AND RETRIEVING VALUES FROM THE CONTROLS

Question

User1972565377 posted

I am using RadGrid Control.

I have created the columns for RadGrid dynamically with two textbox, one dropdown and 1 date picker.

I have created controls dynamically using GridTemplateColumn by assigning UniqueName for ItemTemplate, getting ID for each control(TextBox, Dropdown, DatePicker).

User Inputs the value in dynamically created grid.

While clicking on Save button, the value from each row of the grid should be retrieved. But I am not able to retrieve the values since I created the grid with controls dynamically.

Answer 1

User-2010311731 posted

Please post your code that creates the controls and also the save.

Answer 2

User1972565377 posted

Will provide few lines for getting the textbox value

Here TxtBox itself gives "Nothing"

For each item as GridDataItem In RadGrid.MasterTableView.Items

        DIm TxtBox AS RadTextBox = TryCast(item("UniqueNameOfTemplateColumn").FindControl("txtBoxID"))

        Dim Val As String = TxtBox.Text

Next

Answer 3

User1972565377 posted

Hi Have two buttons

One is "Create Grid" and another is "Save"

Once I click on "Create Grid" button the grid generate with dynamic textbox, date picker, drop down column which uses telerik controls.

Private Class MyTemplate
    Implements ITemplate
    Protected textBox As TextBox
    Private colname As String
    Public Sub New(cName As String)
        colname = cName
    End Sub
    Public Sub InstantiateIn(container As System.Web.UI.Control)
        Dim textBox as New RadTextBox()
        textBox.ID = "TextBox1"
        container.Controls.Add(textBox)
    End Sub
End Class

Protected Sub Button1_Click(sender As Object, e As EventArgs)
   Dim TemplateCol As GridTemplateColumn()

  TemplateCol.Itemtemplate = New MyTemplate("Name")

  TemplateCol.UniqueName = "Name"

  TemplateCol.HeaderText = "Name"

RadGrid.MasterTableView.Columns.Add(TemplateCol)

End Sub

 When I click on "Save" button below code performs

For each item as GridDataItem In RadGrid.MasterTableView.Items

        DIm TxtBox AS RadTextBox = TryCast(item("Name").FindControl("TextBox1"))

        Dim Val As String = TxtBox.Text

Next

Answer 4

User-2010311731 posted

You can try changing the TryCast to DirectCast to see an error message that might point you in the right direction.

Answer 5

User1972565377 posted

DirectCast also not working. It also does not produce value given in radtextbox.

Answer 6

User1972565377 posted

Please let me know the way to retrieve the values from dynamically created textbox, datepicker, dropdown inside radgrid.

Answer 7

User1972565377 posted

Is there any way to get the value given in textbox from the item.ClientID?