Web服务呼叫失败:500 [英] Web sevice call failed: 500

问题描述

大家好，

我正在使用弹出控件扩展器，以从网格视图中显示带有扩展详细信息的弹出窗口.

现在，每当我将鼠标悬停在网格的选择按钮上时，都会弹出一条消息，"Web服务调用失败:500" .

我没有找到解决此问题的任何方法，请帮助我！

在此先感谢！

阿三

我的代码是:

Hi All,

I am using a pop control extender to show a popup with extended details from a grid view.

Now whenever i do mouseover on the select button of my grid, a message would popup, "Web service call failed:500".

I am not finding any solution for this problem, please help me!

Thanks in Advance!

Ahsan

My code is:

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;
using AjaxControlToolkit;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            LoadData();
        }
    }
    private void LoadData()
    {
        string constr = "Server=Ahsan-PC;Database=SampleDatabase;INtegrated Security = true;";
        string query = "SELECT ProductID, ProductName FROM Products";
        SqlDataAdapter da = new SqlDataAdapter(query, constr);
        DataTable table = new DataTable();
        da.Fill(table);
        GridView1.DataSource = table;
        GridView1.DataBind();
    }
    protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            PopupControlExtender pce = e.Row.FindControl("PopupControlExtender1") as PopupControlExtender;
            string behaviorID = "pce_" + e.Row.RowIndex;
            pce.BehaviorID = behaviorID;
            Image img = (Image)e.Row.FindControl("Image1");
            string OnMouseOverScript = string.Format("$find(''{0}'').showPopup();", behaviorID);
            string OnMouseOutScript = string.Format("$find(''{0}'').hidePopup();", behaviorID);
            img.Attributes.Add("onmouseover", OnMouseOverScript);
            img.Attributes.Add("onmouseout", OnMouseOutScript);
        }
    }
    [System.Web.Services.WebMethodAttribute(),
   System.Web.Script.Services.ScriptMethodAttribute()]
    public static string GetDynamicContent(string contextKey)
    {
        string constr = "Server=Ahsan-PC;Database=SampleDatabase;";
        string query = "SELECT UnitPrice, UnitsInStock, Description FROM Products WHERE ProductID = ''"+contextKey+"''";
        SqlDataAdapter da = new SqlDataAdapter(query, constr);
        DataTable table = new DataTable();
        da.Fill(table);
        StringBuilder b = new StringBuilder();
        b.Append("<table style=''background-color:#f3f3f3; border: #336699 3px solid; ");
        b.Append("width:350px; font-size:10pt; font-family:Verdana;'' cellspacing=''0'' cellpadding=''3''>");
        b.Append("<tr><td colspan=''3'' style=''background-color:#336699; color:white;''>");
        b.Append("<b>Product Details</b>"); b.Append("</td></tr>");
        b.Append("<tr><td style=''width:80px;''><b>Unit Price</b></td>");
        b.Append("<td style=''width:80px;''><b>Stock</b></td>");
        b.Append("<td><b>Description</b></td></tr>");
        b.Append("<tr>");
        b.Append("<td>$" + table.Rows[0]["UnitPrice"].ToString() + "</td>");
        b.Append("<td>" + table.Rows[0]["UnitsInStock"].ToString() + "</td>");
        b.Append("<td>" + table.Rows[0]["Description"].ToString() + "</td>");
        b.Append("</tr>");
        b.Append("</table>");
        return b.ToString();
    }
}

推荐答案

find(''{0}'').showPopup();，behaviorID); 字符串OnMouseOutScript = string.Format("

find(''{0}'').showPopup();", behaviorID); string OnMouseOutScript = string.Format("

find(''{0}'').hidePopup();"，behaviorID); img.Attributes.Add("onmouseover"，OnMouseOverScript); img.Attributes.Add("onmouseout"，OnMouseOutScript); } } [System.Web.Services.WebMethodAttribute()， System.Web.Script.Services.ScriptMethodAttribute()] 公共静态字符串GetDynamicContent(string contextKey) { 字符串constr ="Server = Ahsan-PC; Database = SampleDatabase;"; 字符串查询="SELECT单价，UnitsInStock，产品描述从WHERE ProductID =""+ contextKey +""; SqlDataAdapter da =新的SqlDataAdapter(query，constr); DataTable表=新的DataTable(); da.Fill(表); StringBuilder b =新的StringBuilder(); b.Append(< table style ="''background-color:#f3f3f3; border:#336699 3px solid;); b.Append("width:350px; font-size:10pt; font-family:Verdana;''cellspacing =''0''cellpadding =''3''>")); b.Append(< tr>< td colspan =''3''style =''background-color:#336699; color:white;''>"); b.Append(< b>产品详细信息</b>")； b.Append("/td>//tr"); b.Append(< tr> td style =''width:80px;''< b>单价</b</td>")； b.Append(< td style =''width:80px;''< b> Stock</b>/td>")； b.Append("td> b描述/bd/td/tr"")； b.Append(< tr>"); b.Append(< td>

find(''{0}'').hidePopup();", behaviorID); img.Attributes.Add("onmouseover", OnMouseOverScript); img.Attributes.Add("onmouseout", OnMouseOutScript); } } [System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()] public static string GetDynamicContent(string contextKey) { string constr = "Server=Ahsan-PC;Database=SampleDatabase;"; string query = "SELECT UnitPrice, UnitsInStock, Description FROM Products WHERE ProductID = ''"+contextKey+"''"; SqlDataAdapter da = new SqlDataAdapter(query, constr); DataTable table = new DataTable(); da.Fill(table); StringBuilder b = new StringBuilder(); b.Append("<table style=''background-color:#f3f3f3; border: #336699 3px solid; "); b.Append("width:350px; font-size:10pt; font-family:Verdana;'' cellspacing=''0'' cellpadding=''3''>"); b.Append("<tr><td colspan=''3'' style=''background-color:#336699; color:white;''>"); b.Append("<b>Product Details</b>"); b.Append("</td></tr>"); b.Append("<tr><td style=''width:80px;''><b>Unit Price</b></td>"); b.Append("<td style=''width:80px;''><b>Stock</b></td>"); b.Append("<td><b>Description</b></td></tr>"); b.Append("<tr>"); b.Append("<td>

" + table.Rows [0] ["UnitPrice"].ToString()+</td>"); b.Append(< td>" + table.Rows [0] ["UnitsInStock"].ToString()+</td>")); b.Append(< td>" + table.Rows [0] ["Description"].ToString()+</td>")); b.Append(</tr>"); b.Append(</table>"); 返回b.ToString(); } }

" + table.Rows[0]["UnitPrice"].ToString() + "</td>"); b.Append("<td>" + table.Rows[0]["UnitsInStock"].ToString() + "</td>"); b.Append("<td>" + table.Rows[0]["Description"].ToString() + "</td>"); b.Append("</tr>"); b.Append("</table>"); return b.ToString(); } }

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