Accessing elements within a gridview

My gridview is connected to an objectdatasource and contains a bound textbox for input in each row. Next to the textbox, there is a button that triggers a javascript popup for unit conversion.
I am wondering: how can I specify to the unit converter (JavaScript function) which textbox (in which row) should display the results?

Answer №1

When the GridView's RowCreated event is triggered:

Protected Sub MyGridView_RowCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles MyGridView.RowCreated
    If e.Row.RowType = DataControlRowType.DataRow Then
        Dim btn As Button = e.Row.Cells(0).FindControl("btnJavaScriptButton")
        Dim txt As TextBox = e.Row.Cells(1).FindControl("txtResults")

        btn.OnClientClick = "calculate(" & txt.ClientID & ");"
    End If
End Sub

Here, columns with indices 0 and 1 hold the button and textbox, respectively. The JavaScript function named "calculate" is called on button click.

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