How to get data from one page to another page through QueryString in Asp.Net? ~ Code Kulshresth

How to get data from one page to another page through QueryString in Asp.Net?

....................default.aspx......................start......................
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!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>
<table>
<tr>
<td>
<asp:FileUpload ID="flup" runat="server" />
</td>
</tr>
<tr>
<td>
<asp:Button ID="btn_upload" runat="server" Text="Uplaod"
onclick="btn_upload_Click" />
</td>
</tr>
<tr>
<td>
<asp:GridView ID="Gridview1" runat="server" AutoGenerateColumns="false" >
<Columns>
<asp:TemplateField HeaderText="Images">
<ItemTemplate>
<asp:ImageButton ID="img_btn" runat="server" ImageUrl='<%#Eval("img_path") %>' CommandName="show" Width="70px" Height="70px"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</td>
</tr>
</table>

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

....................................end........................................

.................................default.aspx.cs....................................................

using System;

using System.Collections.Generic;

using System.Linq;

using System;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Data.SqlClient;

public partial class Default2 : System.Web.UI.Page

{

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["conn"].ToString());

SqlCommand cmd;

SqlDataAdapter da;

DataSet ds = new DataSet();

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

}

protected void btn_upload_Click(object sender, EventArgs e)

{

if (flup.FileName=="")

{

Response.Write("Please select a image...");

}

else

{

con.Open();

string name = flup.FileName;

string path = Server.MapPath("");

string saveproject = path + "/" + "images" + "/" + name;

flup.PostedFile.SaveAs(saveproject);

string savedatabase = "~" + "//" + "images" + "//" + name;

string str = "insert into uplaod_images1(img_path) values('" + savedatabase + "')";

cmd = new SqlCommand(str, con);

cmd.ExecuteNonQuery();

con.Close();

Response.Write("Upload image sucessfully..");

bind_gridimage();

}

protected void bind_gridimage()

{

con.Open();

da = new SqlDataAdapter("select * from uplaod_images1",con);

da.Fill(ds);

Gridview1.DataSource = ds;

Gridview1.DataBind();

con.Close();

}

protected void Gridview1_RowCommand(object sender, GridViewCommandEventArgs e)

{

GridViewRow row = (GridViewRow)(((Button)e.CommandSource).NamingContainer);

Label id = (Label)row.FindControl("img_btn");

string id1 = id.Text.ToString();

da = new SqlDataAdapter("select img_path from uplaod_images1 where img_path=" + id1 + "", con);

DataSet ds1 = new DataSet();

da.Fill(ds1);

Gridview1.DataSource = ds1;

Gridview1.DataBind();

Response.Redirect("Default3.aspx?id=" + id1 + "");

}

...........................................end.......................

....................................default3.aspx............................................

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>

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

</head>

<body>

<div>

<asp:GridView ID="grd_bind_image" runat="server" AutoGenerateColumns="false" DataKeyNames="img_path">

<asp:TemplateField HeaderText="Images">

<asp:ImageButton ID="img_btn" runat="server" ImageUrl='<%#Eval("img_path") %>' Width="70px" Height="70px"/>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

</div>

</form>

</body>

</html>

..................................end............................

,.......................................default3.aspx.cs...........................................

using System;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page

{

SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["conn"].ToString());

SqlCommand cmd;

SqlDataAdapter da;

DataSet ds = new DataSet();

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

con.Open();

string str = Request.QueryString["id"].ToString();

string str1 = "select img_path from uplaod_images1 where img_path='" + str + "'";

da = new SqlDataAdapter(str1, con);

da.Fill(ds);

grd_bind_image.DataSource = ds;

grd_bind_image.DataBind();

con.Close();

}

..................................end.................

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Wednesday, 14 May 2014