Introduction
This article is used to demonstrate to the user how to get the text present on TableCell inside a GridView. The basic idea is bind your datavalue inside a server side control and finally search for the control and get text from it. The process I have shown is also for a case when a particular column is hidden.
Using the Code
In this sample application, there are two buttons, a button for finding text at column "Data Text" and a button that shows/hides data present under header "Name" and "Data Text".
The button for show/hide certain columns has the following click() event:
//
// Button click event for show/hide columns.
//
Protected Sub btnShowHide_Click(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles btnShowHide.Click
gvPopulate.Columns(0).Visible = Not gvPopulate.Columns(0).Visible
gvPopulate.Columns(2).Visible = Not gvPopulate.Columns(2).Visible
End Sub
Similarly, the button for finding the text present inside a cell have the following click() event:
Dim myText As String = String.Empty
For Each row As GridViewRow In gvPopulate.Rows
Dim chkSelect As CheckBox = CType(row.FindControl("chkSelectName"), CheckBox)
If chkSelect.Checked Then
myText &= CType(row.FindControl("ltrDataText"), Literal).Text & " "
End If
Next
If myText <> String.Empty Then
ScriptManager.RegisterStartupScript(Me.Page, Me.Page.GetType(), _
"message", "alert('" & myText & "');", True)
End If
