我需要能夠查看一個表並從中選擇一行表和編輯該行中的一個字段,以用於我正在處理的項目。現在我只是使用概念驗證程序來弄清楚它是如何工作的,所以我可以將它實現爲真實的東西。所以第一個錯誤我得到的是服務器無法識別關鍵字「提供者」我想編輯一個SQL服務器上的數據表,我不斷收到一個關於不接受關鍵字或者由於超時而無法連接的錯誤
protected void ChangeButton_Click(object sender, EventArgs e)
{
using (SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "UPDATE DevTesting SET testStr = @testStr, testStr2 = @testStr2, testStr3 = @testStr3, testNum = @testNum WHERE PersonID = @PersonID";
cmd.CommandType = CommandType.Text;
string strPersonID = GridView1.Rows[1].Cells[1].Text;
string strTestStr1 = "aerhtsm";
cmd.Parameters.Add("@testStr", SqlDbType.NVarChar, 50).Value = strTestStr1;
conn.Open();
cmd.ExecuteNonQuery();
}
GridView1.EditIndex = -1;
BindGridView();
}
private void BindGridView()
{
using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["SQLServer2005DBConnectionString"].ToString()))
{
DataSet grid1 = new DataSet();
string strSelectCmd = "SELECT testStr, testStr2, testStr3, testNum FROM GridView1";
SqlDataAdapter da = new SqlDataAdapter(strSelectCmd, conn);
conn.Open();
da.Fill(grid1, "GridView1");
DataView dvPerson = grid1.Tables["GridView1"].DefaultView;
GridView1.DataSource = grid1;
GridView1.DataBind();
}
}
我收到其他錯誤是連接保留超時當代碼到達conn.Open();中的changeButton方法。有人能解釋我做錯了什麼嗎?如果你需要它的話,我的web.config文件的副本。
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=aspnet-WebApplication11-20130731142716;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-WebApplication11-20130731142716.mdf"
providerName="System.Data.SqlClient" />
<add name="TestConnectionString" connectionString="Provider=SQLNCLI11;Data Source=HQSQL;Integrated Security=SSPI;Initial Catalog=BG_BACKUP"
providerName="System.Data.OleDb" />
<add name="ConnectionString" connectionString="Provider=SQLNCLI11;Data Source=HQSQL;Integrated Security=SSPI;Initial Catalog=BG_BACKUP"
providerName="System.Data.OleDb" />
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
<pages>
<namespaces>
<add namespace="System.Web.Optimization" />
</namespaces>
<controls>
<add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt" />
</controls>
</pages>
<authentication mode="Forms">
<forms loginUrl="~/Account/Login.aspx" timeout="2880" />
</authentication>
<profile defaultProvider="DefaultProfileProvider">
<providers>
<add name="DefaultProfileProvider" type="System.Web.Providers.DefaultProfileProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
</providers>
</profile>
<membership defaultProvider="DefaultMembershipProvider">
<providers>
<add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" />
</providers>
</membership>
<roleManager defaultProvider="DefaultRoleProvider">
<providers>
<add name="DefaultRoleProvider" type="System.Web.Providers.DefaultRoleProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
</providers>
</roleManager>
<sessionState mode="InProc" customProvider="DefaultSessionProvider">
<providers>
<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />
</providers>
</sessionState>
</system.web>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
</entityFramework>
</configuration>
確定這裏是錯誤,當我按下按鈕覆蓋數據表中的一部分,我得到的image。我試圖remedie我自己的解決方案,並得到了另一個類似的錯誤是在second image.
凡'SQLServer2005DBConnectionString'定義? –