CODEWITHSUNDEEP
asp.netvb.net
Rich
Rich

Reputation: 376

Using TextBox inside GridView gives error "'TextBox' is not delared" in code behind

I am trying to read the values of each TextBox but get an error saying: 'TextBox2' is not delared. It may be inaccessible due to its protection level.

Code in front:

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button1" />

<asp:SqlDataSource ID="SqlDataSource1" runat="server"></asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1">
    <Columns>
        <asp:TemplateField HeaderText="equipment_note" SortExpression="equipment_note">
            <EditItemTemplate>
                <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            </EditItemTemplate>
            <ItemTemplate>
                <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
    <EmptyDataTemplate>
        <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
        <asp:Button ID="Button3" runat="server" Text="Button2" />
    </EmptyDataTemplate>
</asp:GridView>

And the even simpler code behind:

Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click
    Dim strTextBoxValue1 As String = TextBox1.Text
    Dim strTextBoxValue2 As String = TextBox2.Text
    Dim strTextBoxValue3 As String = TextBox3.Text
    Response.Write(strTextBoxValue1)
End Sub

The 'Dim strTextBoxValue1 As' etc line works fine, but value2 and value3 both show the same error saying they're not declared.

How do I read/retrieve the values from TextBox2 and TextBox3 in the code behind?

Upvotes: 0

Views: 948

Answers (3)

MOB
MOB

Reputation: 195

As Adil said you need to find the control first and then you can transfer the value to somthing. example:

For i As Integer = 0 To GridView1.Rows.Count - 1
        Dim row As GridViewRow = GridView1.Rows(i)
        Dim strTextBoxValue2 as string = CType(row.Cells(0).FindControl("TextBox2"), Textbox).Text
Next

Upvotes: 0

Adil
Adil

Reputation: 148110

You can not access the textboxes/server controls in the grid directly instead you need to access the rows thoes aur populated are going to populated like in DataRowBound event.

void CustomersGridView_RowDataBound(Object sender, GridViewRowEventArgs e)
{
    if(e.Row.RowType == DataControlRowType.DataRow)
    {
        // Display the company name in italics.
        Dim TextBox1 As TextBox = e.Row.FindControl("TextBox1") As TextBox;
    }
}

Upvotes: 1

the_lotus
the_lotus

Reputation: 12748

You can't do that cause you have one textbox for each row. You'll need to loop the rows to get to value of each one of them.

Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click

        For Each row As GridViewRow In GridView1.Rows
    strTextBoxValue2 = CType(row.FindControl("TextBox2"), TextBox).Text
        Next

    End Sub

Upvotes: 1

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