Get value of HTML TextArea in code behind using C# and VB.Net in ASP.Net

Hi Debug,

There are two way to get the value.

1. Using Request.Form colletion.

2. Using runat server.

Check this example. Now please take its reference and correct your code.

HTML

<script type="text/javascript" src="//tinymce.cachefly.net/4.0/tinymce.min.js"></script>
<script type="text/javascript">
    tinymce.init({ selector: 'textarea', width: 500 });
</script>
<textarea name="txtText1" rows="2" cols="20"></textarea><br />
<asp:Label ID="lblText1" runat="server" /><hr />
<textarea id="txtText2" runat="server" rows="2" cols="20"></textarea><br />
<asp:Label ID="lblText2" runat="server" /><br />
<asp:Button ID="btnSubmit" Text="Submit" runat="server" OnClick="Submit" />

Code

C#

protected void Submit(object sender, EventArgs e)
{
    lblText1.Text = Request.Form["txtText1"].ToString();
    lblText2.Text = txtText2.InnerText;
}

VB.Net

Protected Sub Submit(sender As Object, e As EventArgs)
    lblText1.Text = Request.Form("txtText1").ToString()
    lblText2.Text = txtText2.InnerText
End Sub