C#

<br />
    <asp:Button ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click" /><br />
<br />

<br />
 protected void btnSave_Click(object sender, System.EventArgs e)<br />
 {<br />
     foreach (GridViewRow row in gv.Rows) <br />
     {<br />
         TextBox tb = (TextBox)row.FindControl("tb");<br />
         string valueTyped = tb.Text;<br />
     }<br />
 }<br />

SqlCommand cmd = new SqlCommand();
cmd.CommandText = "SELECT COUNT(*) FROM table1 WHERE id = @id";
cmd.Parameters.AddWithValue("@id", label1.Text);
cmd.Connection = myConnection;
int count = cmd.ExecuteScalar();
if (count > 0)
{
    // Do stuff
}

xmen_xwk wrote:

yeah it will work but why microsoft made "EXISTS" function in sql ...??

IF EXISTS (SELECT * FROM MyTable WHERE SomeColumn = @SomeValue)
BEGIN
    -- Do stuff here based on whether any rows exist.
END

Luc Pattyn wrote:

And there are some articles on CodeProject[^]

Luc Pattyn wrote:

Maybe the most acclaimed one is GMP (GNU Multi-Precision).

Luc Pattyn wrote:

Not sure what you mean, maybe Convert.FromBase64String()

Luc Pattyn wrote:

Much depends on what it is you want to achieve.

Jeffrey Walton wrote:

I'll get a port together to C#. Do you want to coauthor? I'll have problems with the Mnanaged/Unmanaged thunk