我如何解决“类型异常”System.Web.Httpexception'发生在System.Web.Dll但未在用户代码中处理“? [英] How Do I Solve "An Exception Of Type 'System.Web.Httpexception' Occurred In System.Web.Dll But Was Not Handled In User Code"?
本文介绍了我如何解决“类型异常”System.Web.Httpexception'发生在System.Web.Dll但未在用户代码中处理“?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
System.Web.dll中出现'System.Web.HttpException'类型的异常,但未在用户代码中处理
附加信息:字段或在所选数据源上找不到名称为PurchaseOrderName的属性。
An exception of type 'System.Web.HttpException' occurred in System.Web.dll but was not handled in user code
Additional information: A field or property with the name 'PurchaseOrderName' was not found on the selected data source.
<%@ Page Title="" Language="C#" MasterPageFile="~/Staff.Master" AutoEventWireup="true" CodeBehind="PurchaseOrderDraftDetails.aspx.cs" Inherits="JEAN.PurchaseOrderDraftDetails" %>
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="cc1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<style type="text/css">
.auto-style1 {
width: 100%;
}
.auto-style2 {
width: 267px;
}
.auto-style3 {
width: 386px;
}
</style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<p></p>
<p></p>
<p></p>
<p style="margin-left:440px">Purchase Order Draft Details</p>
<table class="auto-style1" style="margin-left:440px">
<tr>
<td class="auto-style2">Purchase Order ID :</td>
<td>
<asp:Label ID="lblPoID" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="auto-style2">Purchase Order Name :</td>
<td>
<asp:TextBox ID="tbPoName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Purchase Order Description : </td>
<td>
<asp:TextBox ID="tbPoDescription" runat="server" TextMode="MultiLine"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Purchase Order Status :</td>
<td>
<asp:Label ID="lblPoStatus" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="auto-style2">Created by :</td>
<td>
<asp:Label ID="lblCreateBy" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="auto-style2">Created Date : </td>
<td>
<asp:Label ID="lblCreatedDate" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="auto-style2">Last Modified Date : </td>
<td>
<asp:Label ID="lblLastModifiedDate" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td class="auto-style2"> </td>
<td> </td>
</tr>
<tr>
<td class="auto-style2">Supplier :</td>
<td>
<asp:DropDownList ID="ddlSupplier" runat="server" AppendDataBoundItems="True">
<asp:ListItem Value="Select">-- Select --</asp:ListItem>
<asp:ListItem>1</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td class="auto-style2">Supplier's Name : </td>
<td>
<asp:TextBox ID="tbSName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Supplier's Phone :</td>
<td>
<asp:TextBox ID="tbSPhone" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Supplier's Email :</td>
<td>
<asp:TextBox ID="tbSEmail" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Preferred Date : </td>
<td>
<asp:TextBox ID="tbPreferredDate" runat="server"></asp:TextBox>
<cc1:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="tbPreferredDate" />
</td>
</tr>
<tr>
<td class="auto-style2">Preferred Session : </td>
<td>
<asp:TextBox ID="tbSession" runat="server"></asp:TextBox>
</td>
</tr>
</table>
<p>
<asp:GridView ID="gvDraftPoDetails" runat="server" style="margin-left:420px" Width="841px" OnRowCancelingEdit="gvDraftPoDetails_RowCancelingEdit" OnRowDeleting="gvDraftPoDetails_RowDeleting" OnRowEditing="gvDraftPoDetails_RowEditing" OnRowUpdating="gvDraftPoDetails_RowUpdating" BackColor="#CCCCCC" BorderColor="#999999" BorderStyle="Solid" BorderWidth="3px" CellPadding="4" CellSpacing="2" ForeColor="Black" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="PurchaseOrderID" HeaderText="PoID" />
<asp:BoundField DataField="PurchaseOrderName" HeaderText="Purchase Order Name" />
<asp:BoundField DataField="RoomType" HeaderText="Room Type" />
<asp:BoundField DataField="ProductDescription" HeaderText="Product Description" />
<asp:TemplateField HeaderText="Quantity"></asp:TemplateField>
<asp:BoundField DataField="Price" HeaderText="RoomCostPrice" />
<asp:TemplateField HeaderText="Total Price"></asp:TemplateField>
<asp:CommandField ShowEditButton="True" />
<asp:CommandField ShowDeleteButton="True" />
</Columns>
<FooterStyle BackColor="#CCCCCC" />
<HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#CCCCCC" ForeColor="Black" HorizontalAlign="Left" />
<RowStyle BackColor="White" />
<SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
<SortedAscendingCellStyle BackColor="#F1F1F1" />
<SortedAscendingHeaderStyle BackColor="#808080" />
<SortedDescendingCellStyle BackColor="#CAC9C9" />
<SortedDescendingHeaderStyle BackColor="#383838" />
</asp:GridView>
</p>
<table class="auto-style1" style="margin-left:440px" >
<tr>
<td class="auto-style3">
<asp:Label ID="lblResult" runat="server"></asp:Label>
</td>
<td> </td>
</tr>
<tr>
<td class="auto-style3">
<asp:Button ID="btnUpdatePo" runat="server" Text="Update Purchase Order" OnClick="btnUpdatePo_Click" />
</td>
<td>
<asp:Button ID="btnCreatePo" runat="server" style="text-align: left" Text="Create Purchase Order" OnClick="btnCreatePo_Click" />
</td>
</tr>
<tr>
<td class="auto-style3">
<asp:Button ID="btnAddRoom" runat="server" Text="Add Room" OnClick="btnAddRoom_Click" />
</td>
<td>
<asp:Button ID="btnBack" runat="server" Text="Back" OnClick="btnBack_Click" />
</td>
</tr>
</table>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
</asp:Content>
behind code
behind code
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using JEAN.DAL;
using JEAN.BLL;
namespace JEAN
{
public partial class PurchaseOrderDraftDetails : System.Web.UI.Page
{
BLLPurchaseOrder purchaseOrderBLL = new BLLPurchaseOrder();
LoginBLL loginBLL = new LoginBLL();
BLLPurchaseOrderItem purchaseOrderItemBLL = new BLLPurchaseOrderItem();
DALPurchaseOrder purchaseOrder = null;
JEAN.DAL.Login login = null;
DALPurchaseOrderItem purchaseOrderItem = null;
protected void Page_Load(object sender, EventArgs e)
{
CalendarExtender1.StartDate = DateTime.Now;
if (Page.IsPostBack == false)
{
bindListBox();
// Get PurchaseOrderID from querystring
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
// Convert PurchaseOrderID to int
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
// Call getPurchaseOrderDraftDetail() method
purchaseOrder = purchaseOrderBLL.getPurchaseOrderDraftDetail(iPurchaseOrderID);
int createUserID = purchaseOrder.CreateUserID;
login = loginBLL.getUserDetails(createUserID);
string username = login.UserName;
// Display Purchase Order details on web form
lblPoID.Text = purchaseOrder.PurchaseOrderID.ToString();
tbPoName.Text = purchaseOrder.PurchaseOrderName;
tbPoDescription.Text = purchaseOrder.PurchaseOrderDescription;
lblPoStatus.Text = purchaseOrder.PurchaseOrderStatus;
lblCreateBy.Text = username;
lblCreatedDate.Text = purchaseOrder.CreateDate;
lblLastModifiedDate.Text = purchaseOrder.LastModifiedDate;
ddlSupplier.SelectedValue = purchaseOrder.SupplierID.ToString();
tbSName.Text = purchaseOrder.SupplierContactPersonName;
tbSPhone.Text = purchaseOrder.SupplierContactPersonTelephone.ToString();
tbSEmail.Text = purchaseOrder.SupplierContactPersonEmail;
tbPreferredDate.Text = purchaseOrder.PreferredDate;
tbSession.Text = purchaseOrder.PreferredSession;
List<DALPurchaseOrderItem> purchaseOrderItemDetail = new List<DALPurchaseOrderItem>();
purchaseOrderItemDetail = purchaseOrderItemBLL.getDraftPurchaseOrderDetail(iPurchaseOrderID);
gvDraftPoDetails.DataSource = purchaseOrderItemDetail;
gvDraftPoDetails.DataBind();
}
}
private void ShowAlert(string msg)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
sb.Append("alert('");
sb.Append(msg.Replace("\n", "\\n").Replace("\r", "").Replace("'", "\\'"));
sb.Append("');");
ScriptManager.RegisterStartupScript(this.Page, this.GetType(),
"showalert", sb.ToString(), true);
}
private SqlDataReader getReader()
{
// Get connection string from web.config
string strConnectionString = ConfigurationManager.ConnectionStrings["CompanyDB"].ConnectionString;
SqlConnection myConnect = new SqlConnection(strConnectionString);
string strCommandText = "SELECT SupplierID, SupplierName FROM Supplier";
SqlCommand cmd = new SqlCommand(strCommandText, myConnect);
myConnect.Open();
SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
return reader;
}
private void bindListBox()
{
ddlSupplier.DataSource = getReader();
// SupplierName will be displayed in the dropdownlist control
ddlSupplier.DataTextField = "SupplierName";
// When an item is selected in dropdownlist
// SupplierID will be returned in ddlSupplier.SelectedValue
ddlSupplier.DataValueField = "SupplierID";
ddlSupplier.DataBind();
}
protected void btnUpdatePo_Click(object sender, EventArgs e)
{
bool bValid = true;
if (this.tbPoName.Text == "")
{
ShowAlert("Purchase Order Name is required!");
this.tbPoName.Focus();
bValid = false;
}
else if (this.tbPoDescription.Text == "")
{
ShowAlert("Purchase Order Description is required!");
this.tbPoDescription.Focus();
bValid = false;
}
else if (ddlSupplier.SelectedValue == "Select")
{
ShowAlert("Supplier is required!");
bValid = false;
}
else if (this.tbSName.Text == "")
{
ShowAlert("Contact Person Name is required!");
this.tbSName.Focus();
bValid = false;
}
else if (this.tbSPhone.Text == "")
{
ShowAlert("Contact Person Telephone is required!");
this.tbSPhone.Focus();
bValid = false;
}
else if (this.tbSEmail.Text == "")
{
ShowAlert("Contact Person Email is required!");
this.tbSEmail.Focus();
bValid = false;
}
else if (this.tbPreferredDate.Text == "")
{
ShowAlert("Preferred Delivery Date is required!");
this.tbPreferredDate.Focus();
bValid = false;
}
else if (this.tbSession.Text == "")
{
ShowAlert("Preferred session is required!");
this.tbSession.Focus();
bValid = false;
}
else
{
// Get PurchaseOrderID from querystring
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
// Convert PurchaseOrderID to int
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
BLLPurchaseOrder purchaseBLL = new BLLPurchaseOrder();
string SupplierID = ddlSupplier.SelectedValue.ToString();
string PurchaseOrderName = tbPoName.Text;
string PurchaseOrderDescription = tbPoDescription.Text;
string ContactPersonName = tbSName.Text;
string ContactPersonTelephone = tbSPhone.Text;
string ContactPersonEmail = tbSEmail.Text;
string PreferredDate = tbPreferredDate.Text;
string PreferredSession = tbSession.Text;
int iSupplierID = Int32.Parse(SupplierID);
int iContactPersonTelephone = Int32.Parse(ContactPersonTelephone);
string date = System.DateTime.Today.ToShortDateString();
string msg = purchaseBLL.PurchaseOrderUpdate(iPurchaseOrderID, PurchaseOrderName, PurchaseOrderDescription, iSupplierID, ContactPersonName, iContactPersonTelephone, ContactPersonEmail, PreferredDate, PreferredSession);
string msg1 = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date);
ShowAlert("Purchase Order has been updated!");
}
}
protected void btnCreatePo_Click(object sender, EventArgs e)
{
bool bValid = true;
if (this.tbPoName.Text == "")
{
ShowAlert("Purchase Order Name is required!");
this.tbPoName.Focus();
bValid = false;
}
else if (this.tbPoDescription.Text == "")
{
ShowAlert("Purchase Order Description is required!");
this.tbPoDescription.Focus();
bValid = false;
}
else if (ddlSupplier.SelectedValue == "Select")
{
ShowAlert("Supplier is required!");
bValid = false;
}
else if (this.tbSName.Text == "")
{
ShowAlert("Contact Person Name is required!");
this.tbSName.Focus();
bValid = false;
}
else if (this.tbSPhone.Text == "")
{
ShowAlert("Contact Person Telephone is required!");
this.tbSPhone.Focus();
bValid = false;
}
else if (this.tbSEmail.Text == "")
{
ShowAlert("Contact Person Email is required!");
this.tbSEmail.Focus();
bValid = false;
}
else if (this.tbPreferredDate.Text == "")
{
ShowAlert("Preferred Delivery Date is required!");
this.tbPreferredDate.Focus();
bValid = false;
}
else if (this.tbSession.Text == "")
{
ShowAlert("Contact Person Email is required!");
this.tbSession.Focus();
bValid = false;
}
else
{
// Get PurchaseOrderID from querystring
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
// Convert PurchaseOrderID to int
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
BLLPurchaseOrder purchaseBLL = new BLLPurchaseOrder();
string SupplierID = ddlSupplier.SelectedValue.ToString();
string PurchaseOrderName = tbPoName.Text;
string PurchaseOrderDescription = tbPoDescription.Text;
string ContactPersonName = tbSName.Text;
string ContactPersonTelephone = tbSPhone.Text;
string ContactPersonEmail = tbSEmail.Text;
string PreferredDate = tbPreferredDate.Text;
string PreferredSession = tbSession.Text;
int iSupplierID = Int32.Parse(SupplierID);
int iContactPersonTelephone = Int32.Parse(ContactPersonTelephone);
string date = System.DateTime.Today.ToShortDateString();
string msg = purchaseBLL.PurchaseOrderUpdate(iPurchaseOrderID, PurchaseOrderName, PurchaseOrderDescription, iSupplierID, ContactPersonName, iContactPersonTelephone, ContactPersonEmail, PreferredDate, PreferredSession);
string msg1 = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date);
string msg2 = purchaseOrderBLL.PurchaseOrderStatusUpdate(iPurchaseOrderID);
ScriptManager.RegisterStartupScript(this, this.GetType(), "redirect",
"alert('Purchase Order has been successfully created!'); window.location='" +
Request.ApplicationPath + "PurchaseOrderPending.aspx';", true);
}
}
protected void btnAddRoom_Click(object sender, EventArgs e)
{
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
Response.Redirect("RoomCatalogueBook.aspx?PurchaseOrderID=" + purchaseOrderID);
}
protected void btnBack_Click(object sender, EventArgs e)
{
Response.Redirect("PurchaseOrderDraft.aspx");
}
protected void gvDraftPoDetails_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
int PurchaseOrderItemID = (int)gvDraftPoDetails.DataKeys[e.RowIndex].Value;
purchaseOrderItemBLL.PurchaseOrderItemDelete(PurchaseOrderItemID);
string date = System.DateTime.Today.ToShortDateString();
string msg = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date);
Response.Redirect("PurchaseOrderDraftDetails.aspx?PurchaseOrderID=" + purchaseOrderID);
}
protected void gvDraftPoDetails_RowEditing(object sender, GridViewEditEventArgs e)
{
gvDraftPoDetails.EditIndex = e.NewEditIndex;
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
List<DALPurchaseOrderItem> purchaseOrderItemDetail = new List<DALPurchaseOrderItem>();
purchaseOrderItemDetail = purchaseOrderItemBLL.getDraftPurchaseOrderDetail(iPurchaseOrderID);
gvDraftPoDetails.DataSource = purchaseOrderItemDetail;
gvDraftPoDetails.DataBind();
}
protected void gvDraftPoDetails_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
gvDraftPoDetails.EditIndex = -1;
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
List<DALPurchaseOrderItem> purchaseOrderItemDetail = new List<DALPurchaseOrderItem>();
purchaseOrderItemDetail = purchaseOrderItemBLL.getDraftPurchaseOrderDetail(iPurchaseOrderID);
gvDraftPoDetails.DataSource = purchaseOrderItemDetail;
gvDraftPoDetails.DataBind();
}
protected void gvDraftPoDetails_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
// Get selected row
int selectedRow = e.RowIndex;
// Get PurchaseOrderItemID from data key
int PurchaseOrderItemID = (int)gvDraftPoDetails.DataKeys[selectedRow].Value;
// Get current GridView row
GridViewRow row = (GridViewRow)gvDraftPoDetails.Rows[selectedRow];
// Find text box for tbQuantity
TextBox Quantity = (TextBox)row.FindControl("tbQuantity");
// Remove $ sign
string strQuantity = Quantity.Text;
int intQuantity = 0;
string date = System.DateTime.Today.ToShortDateString();
// Check if Quantity is valid
if (Int32.TryParse(strQuantity, out intQuantity))
{
// Get PurchaseOrderID from querystring
string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString();
// Convert PurchaseOrderID to int
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
UpdateQuantity(PurchaseOrderItemID, intQuantity);
string msg = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date);
Response.Redirect("PurchaseOrderDraftDetails.aspx?PurchaseOrderID=" + purchaseOrderID);
}
else
{
lblResult.Text = "Invalid Quantity";
}
}
private void UpdateQuantity(int PurchaseOrderItem, int Quantity)
{
string strConnectionString = ConfigurationManager.ConnectionStrings["CompanyDB"].ConnectionString;
SqlConnection myConnect = new SqlConnection(strConnectionString);
string strCommandText = "UPDATE PurchaseOrderItem SET Quantity=@Quantity WHERE PurchaseOrderItemID=@PurchaseOrderItemID";
SqlCommand cmd = new SqlCommand(strCommandText, myConnect);
cmd.Parameters.AddWithValue("@PurchaseOrderItemID", PurchaseOrderItem);
cmd.Parameters.AddWithValue("@Quantity", Quantity);
myConnect.Open();
int result = cmd.ExecuteNonQuery();
if (result > 0)
lblResult.Text = "";
else
lblResult.Text = "";
myConnect.Close();
// Cancel Edit mode
gvDraftPoDetails.EditIndex = -1;
}
}
}
推荐答案
sign
string strQuantity = Quantity.Text;
int intQuantity = 0;
string date = System.DateTime.Today.ToShortDateString();
// Check if Quantity is valid
if (Int32.TryParse(strQuantity, out intQuantity))
{
// Get PurchaseOrderID from querystring
string purchaseOrderID = Request.QueryString[\"PurchaseOrderID\"].ToString();
// Convert PurchaseOrderID to int
int iPurchaseOrderID = Int32.Parse(purchaseOrderID);
UpdateQuantity(PurchaseOrderItemID, intQuantity);
string msg = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date);
Response.Redirect(\"PurchaseOrderDraftDetails.aspx?PurchaseOrderID=\" + purchaseOrderID);
}
else
{
lblResult.Text = \"Invalid Quantity\";
}
}
private void UpdateQuantity(int PurchaseOrderItem, int Quantity)
{
string strConnectionString = ConfigurationManager.ConnectionStrings[\"CompanyDB\"].ConnectionString;
SqlConnection myConnect = new SqlConnection(strConnectionString);
string strCommandText = \"UPDATE PurchaseOrderItem SET Quantity=@Quantity WHERE PurchaseOrderItemID=@PurchaseOrderItemID\";
SqlCommand cmd = new SqlCommand(strCommandText, myConnect);
cmd.Parameters.AddWithValue(\"@PurchaseOrderItemID\", PurchaseOrderItem);
cmd.Parameters.AddWithValue(\"@Quantity\", Quantity);
myConnect.Open();
int result = cmd.ExecuteNonQuery();
if (result > 0)
lblResult.Text = \"\";
else
lblResult.Text = \"\";
myConnect.Close();
// Cancel Edit mode
gvDraftPoDetails.EditIndex = -1;
}
}
}
sign string strQuantity = Quantity.Text; int intQuantity = 0; string date = System.DateTime.Today.ToShortDateString(); // Check if Quantity is valid if (Int32.TryParse(strQuantity, out intQuantity)) { // Get PurchaseOrderID from querystring string purchaseOrderID = Request.QueryString["PurchaseOrderID"].ToString(); // Convert PurchaseOrderID to int int iPurchaseOrderID = Int32.Parse(purchaseOrderID); UpdateQuantity(PurchaseOrderItemID, intQuantity); string msg = purchaseOrderBLL.PurchaseOrderDateUpdate(iPurchaseOrderID, date); Response.Redirect("PurchaseOrderDraftDetails.aspx?PurchaseOrderID=" + purchaseOrderID); } else { lblResult.Text = "Invalid Quantity"; } } private void UpdateQuantity(int PurchaseOrderItem, int Quantity) { string strConnectionString = ConfigurationManager.ConnectionStrings["CompanyDB"].ConnectionString; SqlConnection myConnect = new SqlConnection(strConnectionString); string strCommandText = "UPDATE PurchaseOrderItem SET Quantity=@Quantity WHERE PurchaseOrderItemID=@PurchaseOrderItemID"; SqlCommand cmd = new SqlCommand(strCommandText, myConnect); cmd.Parameters.AddWithValue("@PurchaseOrderItemID", PurchaseOrderItem); cmd.Parameters.AddWithValue("@Quantity", Quantity); myConnect.Open(); int result = cmd.ExecuteNonQuery(); if (result > 0) lblResult.Text = ""; else lblResult.Text = ""; myConnect.Close(); // Cancel Edit mode gvDraftPoDetails.EditIndex = -1; } } }
You are bindingPurchaseOrderColumn
directly to the grid.
You are bindingPurchaseOrderColumn
directly to the grid.
<asp:BoundField DataField="PurchaseOrderName" HeaderText="Purchase Order Name" />
Make sure that this field is returned by the data source.
Make sure that this field is returned by the data source.
这篇关于我如何解决“类型异常”System.Web.Httpexception'发生在System.Web.Dll但未在用户代码中处理“?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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