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9.3

asp.net database populated drop down list

Asked by rondre in Programming for ASP.NET

Tags: asp.net, asp:dropdown, asp:sqldatasource

I have a page where i'm populating a dropdown list from a database.  Right now the code behind file only reads the form values and then changes a label to show those values.  The label is not getting changed and the page acts differently in firefox 3 and internet explorer 7.  In firefox, the page just doesn't do anything, in IE7 i get the following error message:

/*****
Invalid postback or callback argument.  Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page.  For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them.  If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
*****/

I don't understand why this is not working, I simply want to read the 4 form values and insert them into a database but I like to check as I go and it's not even working right now. 
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page.aspx
//////////////////////////
 
			<div class="post">
			<div class="post-bgtop">
			<div class="post-bgbtm">
				<h1 class="title"><a href="#">Biker Registration  </a></h1>					
                <asp:Label ID="lblInsSuccess" runat="server" Text="here" CssClass="redtext"></asp:Label>
				<div class="entry">
				<form method="post" id="BikReg">
				<p>
				<label class="reglabel">&nbsp;</label>&nbsp;
				*If you don&#39;t see your company listed here, you will need to register above.
				</p>
                    <asp:SqlDataSource ID="srcBus" runat="server"
                    ProviderName="System.Data.SqlClient"
                    connectionString="<%$ connectionStrings:LOCcbc %>"
                    SelectCommand="Select BUSINESS_ID, BUSINESS_NAME FROM BUSINESS ORDER BY BUSINESS_NAME ASC"                    
                    />
				<p>
				    <label for="indBusID" class="reglabel">Your Employer: &nbsp;</label>
                    <asp:DropDownList ID="indBusID" runat="server" AutoPostBack="true" 
                    DataSourceID="srcBus" DataTextField="BUSINESS_NAME" DataValueField="BUSINESS_ID" />
                </p>
				<p>
				    <label for="indTxtFName" class="reglabel">First Name: &nbsp;</label>
                    <asp:TextBox ID="indTxtFName" runat="server" CssClass="reginput"></asp:TextBox>
                </p>
				<p>
				    <label for="indTxtLName" class="reglabel">Last Name: &nbsp;</label>
                    <asp:TextBox ID="indTxtLName" runat="server" CssClass="reginput"></asp:TextBox>
                </p>
				<p>
				    <label for="indTxtEmail" class="reglabel">Email Address: &nbsp;</label>
                    <asp:TextBox ID="indTxtEmail" runat="server" CssClass="reginput"></asp:TextBox>
                </p>
				<p><label for="indRegSubmit" class="reglabel"> &nbsp; </label>
                <asp:Button ID="indRegSubmit" runat="server" Text="Submit" onclick="indRegSubmit_Click" /></p>
                </form>
				</div>
			</div>
			</div>
			</div>
 
////////////////////////////////////
 
codebehind file
 
///////////////////////////////////
using System;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Configuration;
 
public partial class register : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
    }
 
    public static string FixQuotes(string strValue)
    {
        return strValue.Replace("'", "''");
    }
 
    protected void indRegSubmit_Click(object sender, EventArgs e)
    {
        string sqlInsertInd;
        string sqlInsLog1;
        string sqlInsLog2;
        string sqlInsLog3;
        string sqlInsLog4;
        string sqlInsLog5;
        string sqlInsLog6;
        string sqlInsLog7;
 
        int frmBusID = Convert.ToInt32(indBusID.SelectedItem.Value);
        string frmFName = indTxtFName.Text;
        string frmLName = indTxtLName.Text;
        string frmEmail = indTxtEmail.Text;
 
        lblInsSuccess.Text = "businessid: " + frmBusID;
        lblInsSuccess.Text += "<br />frmFName: " + frmFName;
        lblInsSuccess.Text += "<br />frmLName: " + frmLName;
        lblInsSuccess.Text += "<br />frmEmail: " + frmEmail;
        }
}
[+][-]05/07/09 11:43 AM, ID: 24329134Accepted Solution

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About this solution

Zone: Programming for ASP.NET
Tags: asp.net, asp:dropdown, asp:sqldatasource
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Solution Provided By: davrob60
Participating Experts: 1
Solution Grade: A
 
 
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