Hi . I have an employee table with fields Employee Id, Employee Name, Address,Salary , Department ID and department table with fields DeptID,DeptName.
I have added a data grid control with the columns showing Empname , address , salary,DeptName and Edit and Delete columns .
I have inserted image using template columns in the Edit and Delete column .
By clicking on the image in delete column , it should delete that particular row from the datagrid and from database and on refreshing the grid the changes should be shown in the datagrid .
Pleas help .
Dipanjana 0 Light Poster
AleMonteiro 238 Can I pick my title?
Hi dipanjana, have you tried something yet?
If not you should take a look at those resources:
http://www.codeproject.com/Articles/12666/GridView-Delete-with-Confirmation
http://asp.net-informations.com/gridview/gridview-delete.htm
If you already got something that is not working, paste your code so we can take a look.
Good luck.
Dipanjana 0 Light Poster
Hi. m able to delete rows from datagrid now . Now d second part is that once i click on edit column , it should redirect to a another website that i have created for adding and updating employee details . i have written d foll code . Please let me know what changes to be made :
In d HTML part : (I am sending the code for the edit column only)
<asp:TemplateColumn HeaderText="Edit">
<ItemTemplate>
<asp:Image runat="server" Width="50" Height="40" ImageUrl="~/Images/images.jpg" />
<%--<asp:HyperLinkField DataNavigateUrlFields="Name,Address, Salary" DataNavigateUrlFormatString="AddEditEmployee.aspx?name={0}@address={1}@salary={2}" Text="Edit" runat= "server" />
</asp:HyperLinkField > --%>
<asp:HyperLink ID="empinfo" Text="Edit " runat="server" NavigateUrl='<%# "Default.aspx? employee=" + Eval("EmpiD") + "&EmpName=" + Server.UrlEncode(Eval("EmpName").ToString())%>' />
</ItemTemplate>
</asp:TemplateColumn>
<asp:ButtonColumn CommandName="Edit" Text="Edit" ></asp:ButtonColumn>
And in code behind file :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection();
DataGrid1.DeleteCommand+=new DataGridCommandEventHandler(DataGrid1_DeleteCommand);
if (!Page.IsPostBack)
{
FillDataGrid();
}
}
public void FillDataGrid()
{
String strConnString = ConfigurationManager.ConnectionStrings["Company"].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
SqlCommand cmd = new SqlCommand();
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "proc_Getallempdetails";
cmd.Connection = con;
try
{
con.Open();
DataGrid1.DataSource = cmd.ExecuteReader();
DataGrid1.DataBind();
}
catch (Exception ex)
{
throw ex;
}
finally
{
con.Close();
con.Dispose();
}
}
protected void DataGrid1_DeleteCommand(object source, DataGridCommandEventArgs e)
{
string dbcon = ConfigurationManager.ConnectionStrings["Company"].ConnectionString;
SqlConnection con = new SqlConnection(dbcon);
SqlCommand cmd = new SqlCommand("Delete from Employee where Empid=" + DataGrid1.DataKeys[e.Item.ItemIndex].ToString(), con);
con.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "Deleted", "<script>alert('Deleted Successfully')</script>");
con.Close();
FillDataGrid();
}
}
protected void DataGrid1_EditCommand(object source, DataGridCommandEventArgs e)
{
DataGrid1.EditItemIndex = e.Item.ItemIndex;
FillDataGrid();
}
protected void DataGrid1_UpdateCommand(object source, DataGridCommandEventArgs e)
{
TextBox name = (TextBox)DataGrid1.Items[e.Item.ItemIndex].Cells[1].FindControl("txtname_e");
TextBox address= (TextBox)DataGrid1.Items[e.Item.ItemIndex].Cells[2].FindControl("txtadd_e");
TextBox salary = (TextBox)DataGrid1.Items[e.Item.ItemIndex].Cells[1].FindControl("textbox3");
string dbcon = ConfigurationManager.ConnectionStrings["Company"].ConnectionString;
SqlConnection con = new SqlConnection(dbcon);
SqlCommand cmd = new SqlCommand("Update Employee set EmpName='" + name.Text + "',Address='" + address.Text + "' where Empid=" + DataGrid1.DataKeys[e.Item.ItemIndex].ToString(), con);
con.Open();
int rows = cmd.ExecuteNonQuery();
if (rows > 0)
{
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "Updated", "<script>alert('Updated Successfully')</script>");
con.Close();
DataGrid1.EditItemIndex = -1;
FillDataGrid();
}
}
}
Code for Addeditemployee.aspx :
In the HTML part :
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<p>
<table border="1">
<tr>
<td>
Name:
</td>
<td class="style1">
<form runat ="server">
<asp:TextBox ID="txtname_e" runat="server" Width="167px"></asp:TextBox>
</form>
</td>
</tr>
<tr>
<td>
Address:
</td>
<td class="style1">
<form>
<asp:TextBox ID="txtadd_e" runat="server" TextMode="MultiLine" Width="176px"></asp:TextBox>
</form>
<br />
</td>
</tr>
<tr>
<td class="style2" >
Salary :
</td>
<td class="style3">
<asp:TextBox ID="textbox3" runat="server"
Width="176px"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan= "1" >
Department name :
</td>
<td>
<asp:DropDownList runat="server" ID="DropDownList1" Height="31px"
Width="179px" >
<asp:ListItem> </asp:ListItem>
</asp:DropDownList>
<br />
<br />
<br />
</td>
</tr>
<tr>
<td colspan= 2 align= center>
<asp:Button ID="btnadd" runat="server" CommandName="AddNew" Text="Submit"
onclick="btnadd_Click" ></asp:Button>
<asp:Button ID="Button2" runat="server" CommandName="Cancel" Text="Cancel"
onclick="Button2_Click" ></asp:Button>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Add New Record" ></asp:Button>
</td>
</tr>
</table>
</p>
<p>
<br />
</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
</asp:Content>
And in the code behind file :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//string strName = Request.QueryString["name"];
//string strAddress = Request.QueryString["address"];
//string strSalary = Request.QueryString["salary"];
//txtname_e.Text = strName;
//txtadd_e.Text = strAddress;
//textbox3.Text = strSalary;
}
AleMonteiro 238 Can I pick my title?
If you just need to redirect, just use Response.Redirect, like:
protected void DataGrid1_EditCommand(object source, DataGridCommandEventArgs e)
{
DataGrid1.EditItemIndex = e.Item.ItemIndex;
Response.Redirect("MyPage.aspx?index=" + e.Item.ItemIndex);
}
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