Hi guys, I got one question from asp.net forum like , one
fileupload control in there inside the gridview and the gridview is inside a
update panel when the user click on upldate the file will save in the server. So here I will show one demo how to solve
this.
Step 1 Design the Page
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<br />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
onrowdatabound="GridView1_RowDataBound"
onrowediting="GridView1_RowEditing" onrowcommand="GridView1_RowCommand">
<Columns>
<asp:TemplateField HeaderText="ID">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("ID") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="FileName">
<EditItemTemplate>
<asp:FileUpload ID="FileUpload1" runat="server" />
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label3" runat="server" Text='<%# Eval("FileName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Action">
<EditItemTemplate>
<asp:Button ID="Button2" runat="server" CommandName="upd" Text="Update" />
<asp:Button ID="Button3" runat="server" CommandName="cancel" Text="Cancel" />
</EditItemTemplate>
<ItemTemplate>
<asp:Button ID="Button1" runat="server" CommandName="edit" Text="Edit" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
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Step 2. Now write the following code
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Page.Form.Attributes.Add("enctype", "multipart/form-data");
GridView1.DataSource = GetData();
GridView1.DataBind();
}
}
public DataTable GetData()
{
DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("Name");
dt.Columns.Add("FileName");
for (int i = 0; i < 10; i++)
{
dt.Rows.Add("No - " + i.ToString(), "Name -
" + i.ToString(), "FileName
- " + i.ToString()+".jpg");
}
return dt;
}
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowState == DataControlRowState.Edit)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Button btn = (Button)e.Row.FindControl("Button2");
ScriptManager.GetCurrent(this).RegisterPostBackControl(btn);
}
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridView1.DataSource = GetData();
GridView1.DataBind();
}
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "upd")
{
Button btn = e.CommandSource as Button;
FileUpload fu = btn.FindControl("FileUpload1") as FileUpload;
if (fu.HasFile)
{
fu.SaveAs(Server.MapPath("~/Temp/") + "//" + fu.FileName);
}
}
}
}
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