ASP.NET未知输出异常和消息连接SQL Server

-1

我创建了一个新网站。我添加了一个web表单Default2.aspx，其中我通过从工具箱中拖动来创建一个gridview。然后加入如下代码ASP.NET未知输出异常和消息连接SQL Server

<asp:GridView ID="GridView1" runat="server"><Columns> 
<asp:TemplateField HeaderText="Email" > 
<ItemTemplate> 
<asp:Label ID="lbl_Email" Text='<%# Bind("User_Email")%>' runat="server"></asp:Label> 
</ItemTemplate> 
<ItemStyle Font-Size="15px" /> 
</asp:TemplateField> 
<asp:TemplateField HeaderText="First Name" > 
<ItemTemplate> 
<asp:Label ID="lbl_first_name" Text='<%# Bind("User_First_Name")%>' runat="server">  </asp:Label> 
</ItemTemplate> 
<ItemStyle Font-Size="15px" /> 
</asp:TemplateField> 
<asp:TemplateField HeaderText="Last Name" > 
<ItemTemplate> 
<asp:Label ID="lbl_last_name" CssClass="aLinkButton" Text='<%# Bind("User_Last_Name")%>' runat="server"></asp:Label> 
</ItemTemplate> 
<ItemStyle Font-Size="15px" /> 
</asp:TemplateField> 
</Columns> 
    </asp:GridView>

然后在aspx.cs页面添加以下代码表绑定到我的gridview1

public partial class Default2 : System.Web.UI.Page 
{ 
    string strcon = "Server=BLR-MTP-IBM-91;Database=IBM;Trusted_Connection=True;"; 
// connection string // 

SqlConnection con = new SqlConnection(); 
// opened connection 

SqlCommand com = new SqlCommand(); // for query 

DataSet ds = new DataSet(); 

SqlDataAdapter da; 

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (!IsPostBack) 
    { 
     bindgrid(); 
    } 
} 

private void bindgrid() 
{ 
    ds.Clear(); 
    con.ConnectionString = strcon; 
    com.Connection = con; 
    con.Open(); 

    string strquery = "select * from users;"; 

    da = new SqlDataAdapter(strquery, con); 

    da.Fill(ds); 

    GridView1.DataSource = ds; 
    GridView1.DataBind(); 
    con.Close(); 

    } 
}

在我的SQL Server 2008 R2中，我创建了一个名为IBM数据库列名为

User_Email, User_First_Name, User_Last_Name

在错误窗口中没有显示错误。在输出窗口中，我可以看到以下消息：

我已经通过TOOlS删除了很多选项 - 选项 - 调试 - 删除断点& 启用只是我的代码。我删除了一些但我不确定。问题是什么。我是一个新的bie。很长一段时间打破我的头。终于来到堆栈溢出来解决方案。

'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\Program Files\Common Files\Microsoft Shared\DevServer\10.0\WebDev.WebServer40.exe' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\WebDev.WebHost40\v4.0_10.0.0.0__b03f5f7f11d50a3a\WebDev.WebHost40.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Web\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Caching\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.Caching.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Build.Utilities.v4.0\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.Build.Utilities.v4.0.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.RegularExpressions\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.RegularExpressions.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Design\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Design.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Build.Framework\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.Build.Framework.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.Wrapper.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.JScript\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.JScript.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Deployment\v4.0_1.0.0.0__31bf3856ad364e35\System.Web.WebPages.Deployment.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\website4\e495d551\13a31e82\App_global.asax.9ug4n6nu.dll', Symbols loaded. 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.Mobile\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Mobile.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activation\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activation.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.Extensions\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.Extensions.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\SMDiagnostics\v4.0_4.0.0.0__b77a5c561934e089\SMDiagnostics.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.DurableInstancing\v4.0_4.0.0.0__31bf3856ad364e35\System.Runtime.DurableInstancing.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xaml.Hosting\v4.0_4.0.0.0__31bf3856ad364e35\System.Xaml.Hosting.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.CSharp\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.CSharp.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.Services\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.IdentityModel\v4.0_4.0.0.0__b77a5c561934e089\System.IdentityModel.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Web\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Web.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.Activities.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activities.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.WorkflowServices\v4.0_4.0.0.0__31bf3856ad364e35\System.WorkflowServices.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Data.DataSetExtensions\v4.0_4.0.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.DynamicData\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.DynamicData.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.ApplicationServices\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.ApplicationServices.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\website4\e495d551\13a31e82\App_Web_wzu153su.dll', Symbols loaded. 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'A_e34e3632_6676_413f_a677_eaf48e7b990b' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Web.Entity\v4.0_4.0.0.0__b77a5c561934e089\System.Web.Entity.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Data.Services.Design\v4.0_4.0.0.0__b77a5c561934e089\System.Data.Services.Design.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\website4\e495d551\13a31e82\App_Web_tn3t0nc2.dll', Symbols loaded. 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Web.Infrastructure\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Web.Infrastructure.dll' 'WebDev.WebServer40.EXE' (Managed (v4.0.30319)): Loaded 'C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\website4\e495d551\13a31e82\App_Web_vccklmdo.dll', Symbols loaded. The program '[3668] WebDev.WebServer40.EXE: Managed (v4.0.30319)' has exited with code 0 (0x0).

来源

2012-07-30 IBM' er

您是否在任何地方收到错误消息？在那种情况下，它是什么？你所包含的输出窗口内容只是正在加载的dll的标准消息 - 他们什么也没说。 – 2012-07-30 19:05:34

没有显示出错信息。加载它时的网页是空白的。我看不到网格。 – 2012-07-30 19:14:19

尽量拆分我们在大块代码，先看看你是否能得到您的数据库连接？如果它成功完成比去检索数据。一旦你完成了，而不是数据绑定。

来源

2012-07-30 19:06:03 Ayesha

是的，现在尝试... – 2012-07-30 19:26:39

公共部分类_Default：System.Web.UI.Page {protected void Page_Load（object sender，EventArgs e） {string connString =“server = BLR-MTP-IBM-91; database = IBM;集成安全性= SSPI;“; SqlConnection conn = new SqlConnection（connString）; 尝试{ conn.Open（）; Label1.Text =“连接打开”; （SqlException a）{Console.WriteLine（“Error：”+ a）; } finally { conn.Close（）; Label2.Text =“连接关闭”; }} }上面的代码打印为我教。所以我能够连接到数据库。现在不能收回。 – 2012-07-30 19:56:07

确定，尝试代替模板字段的此的的 – Ayesha 2012-07-31 11:25:38

-1

尝试

string strquery = "SELECT * FROM users"

来源

2012-07-30 19:08:29

还是一样的报告 – 2012-07-30 19:26:19

你用什么数据库？这个连接字符串看起来不像一个sql服务器。它应该看起来像：Data Source = .; Initial Catalog = Northwind; Integrated Security = True

如果您确定自己的连接正确，请尝试从gridView中删除模板。保留默认的空gridView控件。数据到来时，网格应显示数据集所保存的所有内容。我现在与SQL服务器一起尝试，它工作。

如果它不起作用，我认为与db的连接是错误的。但我猜应该抛出一些错误。当然，在你的测试表中你有任何数据？ ;）

您是否在页面源中看到空的网格表？它是否被渲染？

来源

2012-07-30 21:44:51 lszk

ASP.NET未知输出异常和消息连接SQL Server

回答

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