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POASP VB.NET GridView: Change Column cell text by column header name with AutogenerateColumn = True
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copied!<p>Pulling my hair out, some help would be great.</p> <p>I'm loading a GridView in ASP dynamically populating the results from an SQL Statement. This page is for general queries so header names are pulled from the query results, no template.</p> <p>What I'm trying to do is when a header is called i.e.. SSN (sensitive data column) I want to go through each cell in this specific column and mask the field. Example: "###-##-####". before the page is displayed, and so all changes are kept on each page change and when the GridView is re-binded.</p> <p>I looked over a couple events like GridView1_RowCreated, GridView1_OnDataBound</p> <p>However, whenever I search for the header.text it's always empty! I can change it and set it, but it's never populated in these events. This leads me to believe I’m looking in the wrong place to do this update.</p> <p>ie:</p> <pre><code>Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) Dim header As String ' DataControlRowType.DataRow - also tried this with checking HeaderText too. If e.Row.RowType = DataControlRowType.Header Then For columnIndex As Integer = 0 To e.Row.Cells.Count - 1 Step 1 header = e.Row.Cells(columnIndex).Text Response.Write(header) ' Empty Response.Write("Cell") ' Will Display this for each header cell. header = String.Empty Next End If End Sub </code></pre> <p>Would I need to do this on the Page_Load or PreRender? Any ideas/examples would be great.<br> Thanks for your help.</p>

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