ASP.NET grid view data can not show

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info.aspx.cs

C#

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class info : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
           
        }

        protected void Button1_Click(object sender, EventArgs e)
        {

            /*String name;
            String address;
            String department;
            if (gender.SelectedItem.Value == "Male")
             {
                  name = nameTextBox.Text.Trim();
                  address = addressTextBox.Text.Trim();
                  department=showDropDownList.Text.Trim();
                 String query="insert into info (Name,Address,Gender,Department) values ('" + name + "','" + address + "','Male','" + department + "')";
                 DataAccess.ExecuteSQL(query);
             }

             else if (gender.SelectedItem.Value == "Female")
             {
                
                name = nameTextBox.Text.Trim();
                address = addressTextBox.Text.Trim();
                department=showDropDownList.Text.Trim();
                 String query = "insert into info (Name,Address,Gender,Department) values ('" + name + "','" + address + "','Female','" + department + "')";
                 DataAccess.ExecuteSQL(query);
             }*/
            String sql = "SELECT Name, Address, Gender, Department FROM  info ";
            DataTable t = DataAccess.GetDataTable(sql);
            this.GridView1.Visible = true;
            GridView1.DataSource = t;
            GridView1.DataBind();
            /*nameTextBox.Text = "";
            addressTextBox.Text = "";
            gender.ClearSelection(); */
        }
    }
}

info.aspx

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="info.aspx.cs" Inherits="WebApplication1.info" %>

<!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>
</head>
<body>
    <form id="form1" runat="server">
    <div>

        <br />
        <br />
        <asp:Label ID="nameLabel" runat="server" Text="Name"></asp:Label>
        <asp:TextBox ID="nameTextBox" runat="server" Height="28px"
            style="margin-left: 81px" Width="221px"></asp:TextBox>
        <br />
        <br />
        <asp:Label ID="addressLabel" runat="server" Text="Address"></asp:Label>
        <asp:TextBox ID="addressTextBox" runat="server" style="margin-left: 66px"
            Width="225px" Height="28px" ></asp:TextBox>
        <br />
        <br />
        <table style="width:100%;">
            <tr>
                <td><asp:Label ID="genderLabel" runat="server" Text="Gender"></asp:Label> </td>
                <td> <asp:RadioButtonList ID="gender" runat="server" Height="24px"
            Width="190px" style="margin-left: 81px; margin-top: 0px;">
            <asp:ListItem>Male</asp:ListItem>
            <asp:ListItem>Female</asp:ListItem>
        </asp:RadioButtonList></td>
            </tr>


        </table>
        <br />
        <asp:Label ID="deptLabel" runat="server" Text="Department"></asp:Label>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        <asp:DropDownList ID="showDropDownList" runat="server">
            <asp:ListItem>BBA</asp:ListItem>
            <asp:ListItem>CSE</asp:ListItem>
            <asp:ListItem>EEE</asp:ListItem>
        </asp:DropDownList>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Show" />


        <br />
        <br />
        <br />
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
            style="margin-top: 0px" Width="529px">
        </asp:GridView>
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />
        <br />


    </div>
    </form>
</body>
</html>

Posted 25-Oct-13 18:11pm

Kawshik_itbd

Updated 25-Oct-13 20:12pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Comments

bbirajdar 26-Oct-13 0:19am

Bind it in the pageload

3 solutions

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Atul Pachori · Answer 1 · 2013-10-25T19:09:00

Solution 2

change your gridview property
set this property

AutoGenerateColumns="True"

Posted 25-Oct-13 19:09pm

Atul Pachori

Dharmesh Kanzariya · Answer 2 · 2013-10-25T19:05:00

Hii,,, Friend.
may be you get some help from this...
There are two ways to solve this problem...

(1) use this gridview :

XML

   <asp:GridView ID="Gridview1" runat="server" AutoGenerateColumns="False"
style="margin-top: 0px" Width="529px">
        <Columns>
         <asp:BoundField DataField ="Name" HeaderText ="Name" ReadOnly="true" />
         <asp:BoundField DataField ="Address" HeaderText ="Address" ReadOnly="true"/>
         <asp:BoundField DataField ="Gender " HeaderText ="Gender " ReadOnly="true"/>
         <asp:BoundField DataField ="Department" HeaderText ="Department" ReadOnly="true"/>
        </Columns>
    </asp:GridView>

(2) Plz change this in your code AutoGenerateColumns="False", to
AutoGenerateColumns="True"...
then you get the data in the grid view....
like this..

XML

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="True"
            style="margin-top: 0px" Width="529px">
        </asp:GridView>

Also keep in mind you have to Bind the DataSource to GridView in Code Behind.......

also you Bind the data in the Page Load..

Hopefully it Works..
Best of Luck...

ErBhati · Answer 3 · 2013-10-25T21:37:00

use this grid view

C#

<asp:GridView ID="Gridview1" runat="server" AutoGenerateColumns="False"
    Width="100%">
           <Columns>
            <asp:BoundField DataField ="Name" HeaderText ="Name" ReadOnly="true" />
            <asp:BoundField DataField ="Address" HeaderText ="Address" ReadOnly="true"/>
            <asp:BoundField DataField ="Gender " HeaderText ="Gender " ReadOnly="true"/>
            <asp:BoundField DataField ="Department" HeaderText ="Department" ReadOnly="true"/>
           </Columns>
       </asp:GridView>

OR

set autogenratedcolumn =true in your code

ASP.NET grid view data can not show

3 solutions

Solution 2

Solution 1

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