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Server error  control 'btnSubmit' of type 'Button' must be placed inside a form tag with runat=server.

augie0216 asked
Last Modified: 2013-12-03
I created a form in asp.net using vb.net code the form consists of a button(btnSubmit) a textbox (txthistorialprices) and and a dropdownlist (ddlStocks). When the user selects an item in the dropdownlist and clicls the submit button, thw code in the submit button should open a sequential file containing the same name as the symbol with the file suffix of .txt.. I have put three files in s shared file called C:\share.  When I run the solution I get this error: Control 'btnSubmit' of type' Button' must be placed inside a form tag with runat = server. I new at this stuff and have no idea what I did wrong. Here is all my code:

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="wfmStockQuotes.aspx.vb" Inherits="Ch13Ex3.WebForm1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
            <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
            <meta content="Visual Basic .NET 7.1" name="CODE_LANGUAGE">
            <meta content="JavaScript" name="vs_defaultClientScript">
            <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
      <body MS_POSITIONING="GridLayout">
            <form id="Form1" method="post" runat="server">
            <p style="FONT-WEIGHT: bold; FONT-FAMILY: Tahoma">
                  <asp:Label id="lblSymbol" style="Z-INDEX: 101; LEFT: 40px; POSITION: absolute; TOP: 56px" runat="server"
                        Width="144px">Select Symbol</asp:Label>
                  <asp:Button id="btnSubmit" style="Z-INDEX: 104; LEFT: 288px; POSITION: absolute; TOP: 248px"
                        runat="server" Text="Submit"></asp:Button>
                  <asp:TextBox id="txtHistoricalPrices" style="Z-INDEX: 103; LEFT: 40px; POSITION: absolute; TOP: 160px"
                        runat="server" TextMode="MultiLine" Height="136px"></asp:TextBox>
                  <asp:DropDownList id="ddlStocks" style="Z-INDEX: 102; LEFT: 40px; POSITION: absolute; TOP: 88px" runat="server">
                        <asp:ListItem Value="abc">American Co.</asp:ListItem>
                        <asp:ListItem Value="jbb">Joe Bob's</asp:ListItem>
                        <asp:ListItem Value="xan">Xtra</asp:ListItem>
                  </asp:DropDownList>Stock Quotes</p>

Public Class WebForm1
    Inherits System.Web.UI.Page

#Region " Web Form Designer Generated Code "

    'This call is required by the Web Form Designer.
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub
    Protected WithEvents lblSymbol As System.Web.UI.WebControls.Label
    Protected WithEvents ddlStocks As System.Web.UI.WebControls.DropDownList
    Protected WithEvents txtHistoricalPrices As System.Web.UI.WebControls.TextBox
    Protected WithEvents btnSubmit As System.Web.UI.WebControls.Button

    'NOTE: The following placeholder declaration is required by the Web Form Designer.
    'Do not delete or move it.
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        'CODEGEN: This method call is required by the Web Form Designer
        'Do not modify it using the code editor.
    End Sub

#End Region

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Put user code to initialize the page here
    End Sub

    Private Sub btnSubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
        Dim SR As New System.IO.StreamReader("c:\Share" & ddlStocks.SelectedValue & ".txt ")
        txtHistoricalPrices.Text = SR.ReadToEnd()
    End Sub
End Class

Thanks Augie

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