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Extract Data into Gridview with C#

Posted by Brijesh Jalan Articles | Visual C# August 11, 2010
In this article we will learn how to Extract data into GridView in C#.
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1.Open visual studio and create a new website.

2.Drag some text boxes , labels , button and Add a data grid view on the page.

3.Use the code on Default.aspx page.

<asp:Label ID="Label1" runat="server" Width="60px"  Text="Name"></asp:Label>
        <asp:TextBox ID="TextBox1" CellPadding="4" CellSpacing="2" runat="server" AutoCompleteType="Disabled"></asp:TextBox>
        <br />
        <br />
        <asp:Label ID="Label2" runat="server" Width="60px"  Text="Address"></asp:Label>
        <asp:TextBox ID="TextBox2" CellPadding="4" CellSpacing="2"  runat="server" AutoCompleteType="Disabled"></asp:TextBox>
        <br />
        <br />
        <asp:Label ID="Label3" runat="server" Width="60px"  Text="Age"></asp:Label>
        <asp:TextBox ID="TextBox3" CellPadding="4" CellSpacing="2" runat="server" AutoCompleteType="Disabled"></asp:TextBox>
        <br />
        <br />
        <asp:Label ID="Label4" runat="server" Width="60px"  Text="Phone_no"></asp:Label>
        <asp:TextBox ID="TextBox4" CellPadding="4" CellSpacing="2" runat="server" AutoCompleteType="Disabled"
</
asp:TextBox>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" CellPadding="4" CellSpacing="2"
            onclick="Button1_Click" Text="Insert"
            style="height: 26px" />
        <asp:Button ID="Button2" runat="server" onclick="Button2_Click" Text="Delete" />
        <br />
        <br />
        <br />
        <asp:GridView ID="GridView1" runat="server" BackColor="#CCCCCC"
            BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4"
            CellSpacing="2"  ForeColor="Black">
            <RowStyle BackColor="White" />
            <FooterStyle BackColor="#CCCCCC" />
            <PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
            <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
            <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
        </asp:GridView>

        <asp:SqlDataSource ID="SqlDataSource1" runat="server"></asp:SqlDataSource>

 4.Use the following code on default.aspx.cs page.

The below code is also include the database connectivity

public
partial class _Default : System.Web.UI.Page
{
    OleDbConnection con;
    OleDbCommand cmd=new OleDbCommand();
    OleDbCommand cmd1;
    string str, str1;
    DataSet ds = new DataSet();
    OleDbDataAdapter da;
    protected void Page_Load(object sender, EventArgs e)
    {
        BindData();
        con = new OleDbConnection("Provider =MSDAORA.1;User ID =system; Password =sys123;database=orcl");
        con.Open ();
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        str = "insert into emp1 values('" + TextBox1.Text + "','" + TextBox2.Text + "','" + TextBox3.Text + "','" +
TextBox4.Text + "')";
        cmd = new OleDbCommand(str, con);
        cmd.ExecuteNonQuery();
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        str1 = "Delete from emp1 where Name ='" + TextBox1.Text + "'";
        cmd1 = new OleDbCommand(str1, con);
        cmd1.ExecuteNonQuery();
    }
    private void BindData()
    {
        con = new OleDbConnection("Provider =MSDAORA.1;User ID =system; Password =sys123;database=orcl");
        str = "Select * from emp1";
        cmd.CommandText = str;
        cmd.Connection = con;
        da = new OleDbDataAdapter(cmd);
        con.Open();
        da.Fill(ds);
        cmd.ExecuteNonQuery();
        if (ds.Tables[0].Rows.Count > 0)
        {
            GridView1.DataSource = ds.Tables[0];
            GridView1.DataBind();
        }
    }
}

OUTPUT OF THE APPLICATION

gridview.jpg

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