asp.net with C#

Monday, March 7, 2011

Shivam Gupta's birth place

Monday, February 21, 2011

Insert/Update/Delete in gridview asp.net

Insert/Update/Delete in GridView using asp.net C#

Insert/Update/Delete in GridView using asp.net C#

Step1:-
Create a employee table:

CREATE TABLE EMPLOYEE
(
EMPID INT IDENTITY(100,1),
FIRSTNAME VARCHAR(20),
LASTNAME VARCHAR(20),
ADDRESS VARCHAR(100),
MOBILE VARCHAR(20)
)

NOW INSERT SOME VALUES IN EMPLOYEE TABLE:

INSERT INTO EMPLOYEE(FIRSTNAME,LASTNAME,ADDRESS,MOBILE)VALUES('SHIVAM','GUPTA','NEW DELHI','8826743157')

STEP2:- CREATE CONNECTION STRING IN WEB.CONFIG FILE.

<connectionStrings>
   <add name="mycon" connectionString="data source=SHIVAMGUPTA; initial catalog=operation; integrated security=true;" providerName="System.Data.SqlClient"/>
  </connectionStrings>

STEP3:- TAKE A GRIDVIEW IN YOUR .ASPX PAGE.

<asp:GridView ID="GridView1" runat="server" AutoGenerateDeleteButton="true" AutoGenerateColumns="false"
   AutoGenerateEditButton="True"
   onpageindexchanging="GridView1_PageIndexChanging"
   onrowcancelingedit="GridView1_RowCancelingEdit" DataKeyNames="EmpID"
   onrowdeleting="GridView1_RowDeleting" onrowediting="GridView1_RowEditing"
   onrowupdating="GridView1_RowUpdating">
   <Columns>
   <asp:BoundField DataField="EMPID" HeaderText="EmployeeID" />
   <asp:BoundField DataField="FirstName" HeaderText="FirstName" />
   <asp:BoundField DataField="LastName" HeaderText="LastName" />
   <asp:BoundField DataField="Address" HeaderText="Address" />
   <asp:BoundField DataField="Mobile" HeaderText="Mobile" />

   </Columns>
   </asp:GridView>

   <asp:Label ID="lblMessage" runat="server"></asp:Label>

STEP4: NOW COME IN YOUR CODE BEHIND .ASPX.CS

public partial class _Default : System.Web.UI.Page
{
   SqlConnection con;
   protected void Page_Load(object sender, EventArgs e)
   {
   string conection;
   conection = System.Configuration.ConfigurationManager.ConnectionStrings["mycon"].ConnectionString.ToString();
   con = new SqlConnection(conection);
   if (!IsPostBack)
   {
   FillGrid();
   }

   }

   protected void FillGrid()
   {
   SqlCommand cmd = new SqlCommand("select * from employee", Con);
   con.Open();
   GridView1.DataSource = cmd.ExecuteReader();
   GridView1.DataBind();
   con.Close();
   }

   protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
   {
   GridView1.EditIndex = e.NewEditIndex;
   FillGrid();

   }

   protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
   {
   int index = GridView1.EditIndex;
   GridViewRow row = GridView1.Rows[index];
   int Eid = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);
   string FirstName = ((TextBox)row.Cells[2].Controls[0]).Text.ToString().Trim();
   string LastName = ((TextBox)row.Cells[3].Controls[0]).Text.ToString().Trim();
   string Address = ((TextBox)row.Cells[4].Controls[0]).Text.ToString().Trim();
   string Mobile = ((TextBox)row.Cells[5].Controls[0]).Text.ToString().Trim();

  string sql = "UPDATE EMPLOYEE SET FIRSTNAME='" + FirstName + "',LastName='" + LastName + "',Address='" +Address + "',Mobile='" + Mobile + "' WHERE EMPID=" + Eid + "";

   SqlCommand cmd = new SqlCommand(sql, con);
   con.Open();
   int temp = cmd.ExecuteNonQuery();
   con.Close();
   if (temp == 1)
   {

   lblMessage.Text = "Record updated successfully";
   }
   GridView1.EditIndex = -1;
   FillGrid();
   }

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
   {
   int Eid = Convert.ToInt32(GridView1.DataKeys[e.RowIndex].Value);
   SqlCommand cmd = new SqlCommand("DELETE FROM EMPLOYEE WHERE EMPID=" + Eid + "", con);
   con.Open();
   int temp = cmd.ExecuteNonQuery();
   if (temp == 1)
   {
   lblMessage.Text = "Record deleted successfully";
   }
   con.Close();
   FillGrid();

   }

   protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
   {
   GridView1.EditIndex = e.NewPageIndex;
   FillGrid();

   }

   protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
   {
   GridView1.EditIndex = -1;
   FillGrid();
   }
}

Insert/Update/Delete in GridView using asp.net C#

get primary key in gridview

*********RowCommand_event of Gridview*************
Step1: Add the gridview in your .aspx page.
<div>
   <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"
   DataKeyNames="EmpID"onrowcommand="GridView1_RowCommand">
   <Columns>
   <asp:BoundField DataField="EMPID" HeaderText="EmployeeID" />
   <asp:BoundField DataField="FirstName" HeaderText="FirstName" />
   <asp:BoundField DataField="LastName" HeaderText="LastName" />
   <asp:BoundField DataField="Address" HeaderText="Address" />
   <asp:BoundField DataField="Mobile" HeaderText="Mobile" />
   <asp:TemplateField>
   <ItemTemplate>
   <asp:Button ID="btnSelect" runat="server" Text="Select" CommandName="Select" CommandArgument='<%# Eval("Mobile") %>' />
   </ItemTemplate>
   </asp:TemplateField>
   </Columns>
   </asp:GridView>

      <asp:Label ID="lblMessage" runat="server"></asp:Label>

   <asp:TextBox ID="txtMobile" runat="server"></asp:TextBox>
   </div>

step 2:- your .aspx.cs page.

NOTE:- this is my connection string which is using in below coding you can use your own to modify it in your web.config file.
My connectiion string is.
"

<connectionStrings>
   <add name="mycon" connectionString="data source=SHIVAMGUPTA; initial catalog=operation; integrated security=true;" providerName="System.Data.SqlClient"/>
  </connectionStrings>

"
**********************your code behind part.*********************

public partial class SelectGridColumn : System.Web.UI.Page
{

SqlConnection con;
   protected void Page_Load(object sender, EventArgs e)
   {
   string conection;
   conection = System.Configuration.ConfigurationManager.ConnectionStrings["mycon"].ConnectionString.ToString();
   con = new SqlConnection(conection);
   if (!IsPostBack)
   {
   FillGrid();
   }
   }

    protected void FillGrid()
   {
   SqlCommand cmd = new SqlCommand("select * from employee", con);
   con.Open();
   GridView1.DataSource = cmd.ExecuteReader();
   GridView1.DataBind();
   con.Close();
   }

    protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
   {
   if (e.CommandName == "Select")
   {
   txtMobile.Text = Convert.ToString(e.CommandArgument);
   lblMessage.Text = "this the mobile no of selected row!";
   }
   }

}

row command in griedview asp.net C#

how to insert value in identy

----------------INSERT VALUE IN IDENTITY COLUM

SET IDENTITY_INSERT EMPLOYEE ON
INSERT INTO EMPLOYEE(EID,ENAME,EADD)
VALUES(1,'SHIVAM','JHANSI/NEW DELHI')
SET IDENTITY_INSERT EMPLOYEE OFF
--------------------------------

Fully Editable GridView in ASP.NET 2 using C#

This post demonstrate  how to make a GridView editable all the time using C# asp.net.

step1-: Create a table with name " items" with following columns("iterm_no","name","price")
   where "iterm_no" is identity column.as describe below

   create table items
   (
   iterm_no int identity(1,1),
   name varchar(20),
   price numeric(10,2)
   )
step2- Now create a web page with name(EditableGridView). as describe below.

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

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

   <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
CellPadding="3" DataKeyNames="INTERM_NO" >
<FooterStyle BackColor="White" ForeColor="#000066" />
<Columns>
<asp:BoundField DataField="INTERM_NO" HeaderText="ITEM_N0" InsertVisible="False" ReadOnly="True"
SortExpression="INTERM_NO" />
<asp:TemplateField HeaderText="NAME" SortExpression="NAME">
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("NAME") %>'
OnTextChanged="TextBox_TextChanged" BorderStyle="None"></asp:TextBox>
<asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Eval("INTERM_NO") %>' />
</ItemTemplate>
</asp:TemplateField>

<asp:TemplateField HeaderText="PRICE" SortExpression="PRICE">
<ItemTemplate>
<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("PRICE") %>'
OnTextChanged="TextBox_TextChanged" BorderStyle="None"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>

</Columns>
<RowStyle ForeColor="#000066" />
<SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
<HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
</asp:GridView>
   </div>
   <asp:Button ID="btnUpdate" runat="server" onclick="btnUpdate_Click"
   Text="Update" />
   <asp:Label ID="lblMessage" runat="server"></asp:Label>
   </form>
</body>
</html>

step 3- Go to your code behind (EditableGridView.cs) as describe below.
using System;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Data.SqlClient;

public partial class EditableGridView : System.Web.UI.Page
{

   SqlConnection con;
   bool[] rowChanged;
   protected void Page_Load(object sender, EventArgs e)
   {
   string conString = ConfigurationSettings.AppSettings["mycon"];
   con = new SqlConnection(conString);
   int totalRows = GridView1.Rows.Count;
   rowChanged = new bool[totalRows];
   if (!Page.IsPostBack)
   {
   BindGrid();
   }
   }

   public void BindGrid()
   {
   SqlDataAdapter adap = new SqlDataAdapter("select * from items", con);
   DataTable dt = new DataTable();
   adap.Fill(dt);
   GridView1.DataSource = dt;
   GridView1.DataBind();
   }

   protected void TextBox_TextChanged(object sender, EventArgs e)
   {
   TextBox thisTextBox = (TextBox)sender;
   GridViewRow thisGridViewRow = (GridViewRow)thisTextBox.Parent.Parent;
   int row = thisGridViewRow.RowIndex;
   rowChanged[row] = true;
   }

   protected void btnUpdate_Click(object sender, EventArgs e)
   {
   if (Page.IsPostBack)
   {
   int totalRows = GridView1.Rows.Count;
   for (int r = 0; r < totalRows; r++)
   {
   if (rowChanged[r])
   {
   GridViewRow thisGridViewRow = GridView1.Rows[r];
   HiddenField hf1 = (HiddenField)thisGridViewRow.FindControl("HiddenField1");
   string pk = hf1.Value;
   TextBox tb1 = (TextBox)thisGridViewRow.FindControl("TextBox1");
   string name = tb1.Text;
   TextBox tb2 = (TextBox)thisGridViewRow.FindControl("TextBox2");
   decimal price = Convert.ToDecimal(tb2.Text);

   SqlCommand cmd = new SqlCommand("update items set name='" + name + "' , price='" + price + "' where INTERM_NO=' " + pk + "'", con);
   if (con.State == ConnectionState.Closed)
   {
   con.Open();
   }
   int temp = cmd.ExecuteNonQuery();
   if (temp > 0)
   {
   lblMessage.Text = "Operation perform successfully";
   con.Close();
   }

   }
   }
   GridView1.DataBind();
   BindGrid();
   }
   }
}
Note: If you have any query or question about this post contact us:

How to get integer and character from input and display them in c

#include<stdio.h>
void main()
{

int r,m;
char variable;
printf("Enter the grad of student");
scanf("%c",&variable);
printf("Enter the roll no of student");
scanf("%d",&r);
printf("Enter the marks of student");
scanf("%d",&m);

// now display the student information

printf("\n");
printf("Rollno of student is %d",r);
printf("\n");
printf("Marks of student is %d",m);
printf("\n");
printf("Grade of student is%c", variable);
}

ViewState with example in asp.net C#

Monday, March 7, 2011

Shivam Gupta's birth place

Monday, February 21, 2011

Insert/Update/Delete in gridview asp.net

get primary key in gridview

row command in griedview asp.net C#

how to insert value in identy

Fully Editable GridView in ASP.NET 2 using C#

How to get integer and character from input and display them in c

Labels

Blog Archive

ViewState with example in asp.net C#

Monday, March 7, 2011

Shivam Gupta's birth place

Monday, February 21, 2011

Insert/Update/Delete in gridview asp.net

get primary key in gridview

row command in griedview asp.net C#

how to insert value in identy

Fully Editable GridView in ASP.NET 2 using C#

How to get integer and character from input and display them in c

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