title: Data binding of dropdown throws error HTMLTextArea property does not exist
body: <p>I am using a text box control to add records to a table. The data is bound to a dropdown list. I can add a record and rebind the dropdown perfectly fine the first time. However if I try to add a second record the dropdown databind() call throws an error ...</p>
  
  <pre><code> DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'System.Web.UI.HtmlControls.HtmlTextArea'. 
  </code></pre>
  
  <p>The code for the databinding is ...</p>
  
  <pre><code> Dim connectionString As String = WebConfigurationManager.ConnectionStrings("DeliverablesConnectionString").ConnectionString
          Dim cnn As New SqlConnection(connectionString)
          Dim commandSql As SqlCommand
          cnn.Open()
          commandSql = New SqlCommand("INSERT INTO tblDeliverableCategories (FunID, DeliverableCategory, State) VALUES (" &amp; ddlFunctionalArea.Text &amp; ", '" &amp; txtNewDeliverableCategory.Value &amp; "', '" &amp; ddlStateForAdd.Text &amp; "')", cnn)
          commandSql.ExecuteNonQuery()
          cnn.Close()
          ddlDeliverableCategory.DataSourceID = "SqlDataSourceddlDeliverableCategory"
          ddlDeliverableCategory.DataBind()
          ddlDeliverableCategory.DataValueField = txtNewDeliverableCategory.ToString()
          Dim count As Integer = ddlDeliverableCategory.Items.Count
          ddlDeliverableCategory.SelectedIndex = count - 1
          lblDelCatCreated.Text = "Deliverable Name was added."
  </code></pre>