<%@ Page Language="C#" AutoEventWireup="true" CodeFile="CreateChallan.aspx.cs" Inherits="CreateChallan" %>
<!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>Untitled Page</title>
</head >
<body onload="GetDateTime()">
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server"
AllowPaging="True"
DataSourceID="SqlDataSource1"
AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333">
<AlternatingRowStyle BackColor="White" />
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:CheckBox ID="chkSelect" runat="server"
AutoPostBack="true"
OnCheckedChanged="chkSelect_CheckedChanged" />
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="DocketNo" HeaderText="DocketNo"
SortExpression="ID" />
<asp:TemplateField HeaderText="BranchCode"
SortExpression="BranchCode">
<ItemTemplate>
<asp:TextBox ID="txtBranchCode" runat="server"
Text='<%# Bind("BranchCode") %>' ReadOnly="true"
ForeColor="Blue" BorderStyle="none"
BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Date"
SortExpression="Date">
<ItemTemplate>
<asp:TextBox ID="txtDate" runat="server"
Text='<%# Bind("Date") %>'
ReadOnly="true" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="PKTS"
SortExpression="PKTS">
<ItemTemplate>
<asp:TextBox ID="txtPKTS" runat="server"
Text='<%# Bind("PKTS") %>' ReadOnly="true"
ForeColor="Blue" BorderStyle="none"
BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="To"
SortExpression="To">
<ItemTemplate>
<asp:TextBox ID="txtTo" runat="server"
Text='<%# Bind("To") %>'
ReadOnly="true" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ActWT"
SortExpression="ActWt">
<ItemTemplate>
<asp:TextBox ID="txtActWt" runat="server"
Text='<%# Bind("ActWt") %>'
ReadOnly="true" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ChargeWt"
SortExpression="ChargeWt">
<ItemTemplate>
<asp:TextBox ID="txtChargeWt" runat="server"
Text='<%# Bind("ChargeWt") %>'
ReadOnly="true" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Mode"
SortExpression="Mode">
<ItemTemplate>
<asp:TextBox ID="Mode" runat="server"
Text='<%# Bind("Mode") %>'
ReadOnly="true" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ChallanNo"
SortExpression="ChallanNo">
<ItemTemplate>
<asp:TextBox ID="txtChallanNo" runat="server"
Text='<%# Bind("ChallanNo") %>'
ReadOnly="false" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="VehicleNo" SortExpression="VehicleNo">
<ItemTemplate>
<asp:TextBox ID="VehicleNo" runat="server"
Text='<%# Bind("VehicleNo") %>'
ReadOnly="False" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="ChallanDate"
SortExpression="ChallanDate">
<ItemTemplate>
<asp:TextBox ID="txtChallanDate" runat="server"
Text='<%# String.Format("{0} - {1}", Eval("ChallanDate"), System.DateTime.Now.ToString()) %>'
ReadOnly="False" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description"
SortExpression="Description">
<ItemTemplate>
<asp:TextBox ID="txtDescription" runat="server"
Text='<%# Bind("Description") %>'
ReadOnly="False" ForeColor="Blue"
BorderStyle="none" BorderWidth="0px">
</asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EditRowStyle BackColor="#2461BF" />
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
<RowStyle BackColor="#EFF3FB" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<SortedAscendingCellStyle BackColor="#F5F7FB" />
<SortedAscendingHeaderStyle BackColor="#6D95E1" />
<SortedDescendingCellStyle BackColor="#E9EBEF" />
<SortedDescendingHeaderStyle BackColor="#4870BE" />
</asp:GridView>
SELECT FROM
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:amitpandeyConnectionString2 %>"
SelectCommand="SELECT [Date], [DocketNo], [To], [PKTS], [ActWt], [ChargeWt], [Mode], [BranchCode],[ChallanNo] ,[ChallanDate],[VehicleNo], [Description] FROM [CreateDocket]"
DeleteCommand="DELETE FROM product WHERE (DocketNo= @DocketNo)"
UpdateCommand="UPDATE [CreateDocket] SET [To] = @To,
[Date] = @Date,[PKTS]=@PKTS,[BranchCode] = @BranchCode,[ActWt] = @ActWt,[ChargeWt]=@ChargeWt,[Mode]=@Mode,[ChallanNo]=@ChallanNo,[ChallanDate]=@ChallanDate,[VehicleNo]=@VehicleNo,[Description]=@Description WHERE [DocketNo] = @DocketNo">
<DeleteParameters>
<asp:Parameter Name="DocketNo" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="Date" />
<asp:Parameter Name="PKTS" />
<asp:Parameter Name="To" />
<asp:Parameter Name="BranchCode" />
<asp:Parameter Name="ActWt" />
<asp:Parameter Name="ChargeWT" />
<asp:Parameter Name="Mode" />
<asp:Parameter Name="ChallanNo" />
<asp:Parameter Name="ChallanDate" />
<asp:Parameter Name="VehicleNo" />
<asp:Parameter Name="Description" />
</UpdateParameters>
</asp:SqlDataSource>
<br />
<asp:Button ID="btnUpdate" runat="server"
OnClick="btnUpdate_Click" Text="Save" /><br />
</div>
</form>
</body>
</html>
using System;
using System.Collections;
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;
using System.Text;
public partial class CreateChallan : System.Web.UI.Page
{
string connStr = ConfigurationManager.ConnectionStrings["amitpandeyConnectionString2"].ConnectionString;
protected void btnUpdate_Click(object sender, EventArgs e)
{
StringBuilder strSql = new StringBuilder(string.Empty);
SqlConnection con = new SqlConnection(connStr);
SqlCommand cmd = new SqlCommand();
for (int i = 0; i < GridView1.Rows.Count; i++)
{
CheckBox chkUpdate = (CheckBox)
GridView1.Rows[i].Cells[0].FindControl("chkSelect");
if (chkUpdate != null)
{
if (chkUpdate.Checked)
{
string strDocketNo = GridView1.Rows[i].Cells[1].Text;
string strBranchCode = ((TextBox)GridView1.Rows[i].FindControl("txtBranchCode")).Text;
string strDate = ((TextBox)GridView1.Rows[i].FindControl("txtDate")).Text;
string strPKTS = ((TextBox)GridView1.Rows[i].FindControl("txtPKTS")).Text;
string strTo = ((TextBox)GridView1.Rows[i].FindControl("txtTo")).Text;
string strActWt = ((TextBox)GridView1.Rows[i].FindControl("txtActwt")).Text;
string strChargeWt = ((TextBox)GridView1.Rows[i].FindControl("txtChargeWt")).Text;
string strMode = ((TextBox)GridView1.Rows[i].FindControl("txtMode")).Text;
string strChallanNo = ((TextBox)GridView1.Rows[i].FindControl("txtChallanNo")).Text;
string strVehicleNo = ((TextBox)GridView1.Rows[i].FindControl("txtVehicleNo")).Text;
string strChallanDate = ((TextBox)GridView1.Rows[i].FindControl("txtChallanDate")).Text;
string strDescription = ((TextBox)GridView1.Rows[i].FindControl("txtDescription")).Text;
string strUpdate ="Update CreateDocket set BranchCode = '" + strBranchCode + "', Date = '" + strDate + "', PKTS = '" + strPKTS + "',To = '"+strTo+"',ActWt = '" + strActWt + "',ChargeWt = '" + strChargeWt + "',Mode = '" + strMode + "',ChallanNo = '" + strChallanNo + "',VehicleNo = '" + strVehicleNo + "',ChallanDate = '" + strChallanDate + "',Description = '" + strDescription + "' WHERE DocketNo ='" + strDocketNo + "'";
strSql.Append(strUpdate);
}
}
}
try
{
cmd.CommandType = CommandType.Text;
cmd.CommandText = strSql.ToString();
cmd.Connection = con;
con.Open();
cmd.ExecuteNonQuery();
}
catch (SqlException ex)
{
string errorMsg = "Error in Updation";
errorMsg += ex.Message;
throw new Exception(errorMsg);
}
finally
{
con.Close();
}
}
protected void chkSelect_CheckedChanged
(object sender, EventArgs e)
{
CheckBox chkTest = (CheckBox)sender;
GridViewRow grdRow = (GridViewRow)chkTest.NamingContainer;
TextBox txtBranchCode = (TextBox)grdRow.FindControl("txtBranchCode");
TextBox txtDate = (TextBox)grdRow.FindControl("txtDate");
TextBox txtPKTS = (TextBox)grdRow.FindControl("txtPKTS");
TextBox txtTo = (TextBox)grdRow.FindControl("txtTo");
TextBox txtActWT = (TextBox)grdRow.FindControl("txtActWT");
TextBox txtChargeWt = (TextBox)grdRow.FindControl("txtChargeWt");
TextBox txtMode = (TextBox)grdRow.FindControl("txtMode");
TextBox txtChallanNo = (TextBox)grdRow.FindControl("txtChallanNo");
TextBox txtVehicleNo = (TextBox)grdRow.FindControl("txtVehicleNo");
TextBox txtChallanDate = (TextBox)grdRow.FindControl("txtChallanDate");
TextBox txtDescription = (TextBox)grdRow.FindControl("txtDescription");
if (chkTest.Checked)
{
txtChallanNo.ReadOnly = false;
txtVehicleNo.ReadOnly = false;
txtChallanDate.ReadOnly = false;
txtDescription.ReadOnly = false;
txtChallanNo.ForeColor = System.Drawing.Color.Red;
txtVehicleNo.ForeColor = System.Drawing.Color.Red;
txtChallanDate.ForeColor = System.Drawing.Color.Red;
txtDescription.ForeColor = System.Drawing.Color.Red;
}
else
{
txtChallanNo.ReadOnly = true;
txtVehicleNo.ReadOnly = true;
txtChallanDate.ReadOnly = true;
txtDescription.ReadOnly = true;
txtChallanNo.ForeColor = System.Drawing.Color.Green;
txtVehicleNo.ForeColor = System.Drawing.Color.Green;
txtChallanDate.ForeColor = System.Drawing.Color.Green;
txtDescription.ForeColor = System.Drawing.Color.Green;
}
}
}
the error I am getting is:
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 117: txtVehicleNo.ReadOnly = false;
I am not really able to make out what is the problem in this page.When I try to remove the If case then it is showing me error on line cmd.ExecuteNonQuery(); with error: "ExecuteNonQuery: CommandText property has not been initialized".
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