Conversion failed when converting the varchar value 'System.Web.UI.WebControls.DropDownList' to data type int.

Question

0.00/5 (No votes)

See more:

Hi all

I am getting the error "Conversion failed when converting the varchar value 'System.Web.UI.WebControls.DropDownList' to data type int." when i enter numerical values into the drop down list . can any one tell me where i went wrong

code goes here

aspx

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default7.aspx.cs" Inherits="Default7" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <style type="text/css">
        #form1
        {
            height: 3px;
            font-weight: 700;
        }
    </style>
</head>
<body bgcolor="#000000">
    <form id="form1" runat="server">
    <br />

    <asp:DropDownList ID="DropDownList1" runat="server">
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>
    </asp:DropDownList>
    <br />

    <br />
    <br />
    <asp:DropDownList ID="DropDownList2" runat="server" >
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>

    </asp:DropDownList>
    <br />
    <br />

    <asp:DropDownList ID="DropDownList3" runat="server">
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>

    </asp:DropDownList>
    <br />
    <br />

    <asp:DropDownList ID="DropDownList4" runat="server" AutoPostBack="True">
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>

    </asp:DropDownList>
    <br />
    <br />
    <asp:DropDownList ID="DropDownList5" runat="server">
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>

    </asp:DropDownList>
    <br />
    <br />

    <asp:DropDownList ID="DropDownList6" runat="server">
        <asp:ListItem>0</asp:ListItem>
        <asp:ListItem>1</asp:ListItem>
        <asp:ListItem>2</asp:ListItem>

    </asp:DropDownList>
    <br />
    <br />

    <br />
    <br />
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
    </form>
</body>
</html>

aspx.cs

HTML

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;


public partial class Default7 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    SqlConnection con = new SqlConnection("Data Source=ADMIN-PC;Initial Catalog=livemymoments;Integrated Security=True");
    SqlCommand cmd;
    SqlDataReader dr;
    
    protected void Button1_Click(object sender, EventArgs e)
    {
        con.Open();
        cmd = new SqlCommand("insert into marriage_config values('" + DropDownList1 + "','" + DropDownList2 + "','" + DropDownList3 + "','" + DropDownList4 + "','" + DropDownList5 + "','" + DropDownList6 + "')", con);
        cmd.ExecuteNonQuery();

    }
}

Posted 5-Nov-12 4:21am

Raghavanand

Add a Solution

Comments

Richard C Bishop 5-Nov-12 10:28am

It appears as if you are trying to insert the entire DropDownList into marriage_config instead of a selected value. Is that your intent or are you looking for specific values?

Raghavanand 5-Nov-12 10:42am

sorry for the trouble... solved this myself...

Richard C Bishop 5-Nov-12 10:55am

Good job.

2 solutions

Solution 2

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;

public partial class Default7 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
SqlConnection con = new SqlConnection("Data Source=ADMIN-PC;Initial Catalog=livemymoments;Integrated Security=True");
SqlCommand cmd;
SqlDataReader dr;

protected void Button1_Click(object sender, EventArgs e)
{
con.Open();
cmd = new SqlCommand("insert into marriage_config values('" + DropDownList1.SelectedItem + "','" + DropDownList2.SelectedItem + "','" + DropDownList3.SelectedItem + "','" + DropDownList4.SelectedItem + "','" + DropDownList5.SelectedItem + "','" + DropDownList6.SelectedItem + "')", con);
cmd.ExecuteNonQuery();

}
}

HTML

Posted 5-Nov-12 4:43am

Raghavanand

Comments

bbirajdar 5-Nov-12 10:52am

It should be selecteditem.value

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CafedeJamaica · Accepted Answer · 2012-11-05T04:31:00

Solution 1

You need to do "DropDownList3.SelectedValue" or "DropDownList3.SelectedIndex" to get the selected values.

Posted 5-Nov-12 4:31am

CafedeJamaica