“/”应用程序中的服务器错误。

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行 80: 				ds.Tables[5].Columns["iCode"]);
行 81: 
行 82: 			ds.Relations.Add("picsmallrelation",
行 83: 				ds.Tables[0].Columns["id"],
行 84: 				ds.Tables[6].Columns["iClass"]);

[ArgumentNullException: “column”参数不能为空。
参数名: column]
   System.Data.DataKey..ctor(DataColumn[] columns, Boolean copyColumns) +1918296
   System.Data.DataRelation.Create(String relationName, DataColumn[] parentColumns, DataColumn[] childColumns, Boolean createConstraints) +95
   System.Data.DataRelation..ctor(String relationName, DataColumn parentColumn, DataColumn childColumn, Boolean createConstraints) +193
   System.Data.DataRelationCollection.Add(String name, DataColumn parentColumn, DataColumn childColumn) +37
   ZLNews.Girl.Bind() in d:\cswen.com2.0\Girl.aspx.cs:82
   ZLNews.Girl.Page_Load(Object sender, EventArgs e) in d:\cswen.com2.0\Girl.aspx.cs:30
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +47
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061