protected void Page_Load(object sender, EventArgs e)
{
string s = System.Configuration.ConfigurationManager.ConnectionStrings["sqlconnstr"].ConnectionString;
ReportDocument oCR = new ReportDocument();
string reportPath = Server.MapPath("SalesData.rpt");
oCR.Load(reportPath); SqlConnection MyConn = new SqlConnection(s);
//MyConn.Open();
//string strSel = "Select * from SalesDataImport";
string strSel = Request.Form["sql"];
//Response.Write(strSel);
//Response.End();
//SqlCommand cmd = new SqlCommand(selectStr, conn);
SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,MyConn);
DataSet ds = new DataSet();//这个DataSet1在结构上最好跟水晶表的一致,
//路径可以不同
MyAdapter.Fill(ds,"SalesDataImport");
//MyConn.Close();
oCR.SetDataSource(ds);
this.SalesDataView.ReportSource = oCR;
SalesDataView.DataBind(); }ExecuteReader: CommandText 属性尚未初始化
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 异常详细信息: System.InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化源错误:
行 35: DataSet ds = new DataSet();//这个DataSet1在结构上最好跟水晶表的一致,
行 36: //路径可以不同
行 37: MyAdapter.Fill(ds,"ttt");
行 38: //MyConn.Close();
行 39:
源文件: e:\HYWMS\Report\Temple\SalesData.aspx.cs 行: 37
[InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化]
System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) +873604
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +73
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +122
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12
System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +7
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +141
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83
Temple_SalesData.Page_Load(Object sender, EventArgs e) in e:\HYWMS\Report\Temple\SalesData.aspx.cs:37
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
{
string s = System.Configuration.ConfigurationManager.ConnectionStrings["sqlconnstr"].ConnectionString;
ReportDocument oCR = new ReportDocument();
string reportPath = Server.MapPath("SalesData.rpt");
oCR.Load(reportPath); SqlConnection MyConn = new SqlConnection(s);
//MyConn.Open();
//string strSel = "Select * from SalesDataImport";
string strSel = Request.Form["sql"];
//Response.Write(strSel);
//Response.End();
//SqlCommand cmd = new SqlCommand(selectStr, conn);
SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,MyConn);
DataSet ds = new DataSet();//这个DataSet1在结构上最好跟水晶表的一致,
//路径可以不同
MyAdapter.Fill(ds,"SalesDataImport");
//MyConn.Close();
oCR.SetDataSource(ds);
this.SalesDataView.ReportSource = oCR;
SalesDataView.DataBind(); }ExecuteReader: CommandText 属性尚未初始化
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。 异常详细信息: System.InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化源错误:
行 35: DataSet ds = new DataSet();//这个DataSet1在结构上最好跟水晶表的一致,
行 36: //路径可以不同
行 37: MyAdapter.Fill(ds,"ttt");
行 38: //MyConn.Close();
行 39:
源文件: e:\HYWMS\Report\Temple\SalesData.aspx.cs 行: 37
[InvalidOperationException: ExecuteReader: CommandText 属性尚未初始化]
System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) +873604
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +73
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +122
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12
System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +7
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +141
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83
Temple_SalesData.Page_Load(Object sender, EventArgs e) in e:\HYWMS\Report\Temple\SalesData.aspx.cs:37
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
*****************************************************************************
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protected void Page_Load(object sender, EventArgs e)
{
string s = System.Configuration.ConfigurationManager.ConnectionStrings["sqlconnstr"].ConnectionString;
ReportDocument oCR = new ReportDocument();
string reportPath = Server.MapPath("SalesData.rpt");
oCR.Load(reportPath); SqlConnection MyConn = new SqlConnection(s);
string strSel = Request.Form["sql"]; // 确认这里的strSel是否为""
SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,MyConn);
DataSet ds = new DataSet();//这个DataSet1在结构上最好跟水晶表的一致,
//路径可以不同
MyAdapter.Fill(ds,"SalesDataImport");
//MyConn.Close();
oCR.SetDataSource(ds.Tables["SalesDataImport"]); // 绑定数据的table
this.SalesDataView.ReportSource = oCR;
SalesDataView.DataBind(); }
{
string s = System.Configuration.ConfigurationManager.ConnectionStrings["sqlconnstr"].ConnectionString;
ReportDocument oCR = new ReportDocument();
string reportPath = Server.MapPath("SalesData.rpt");
oCR.Load(reportPath); SqlConnection MyConn = new SqlConnection(s);
/* 这里sql的要和datatable中的列名一致
*如:select name as column1, password as column2, ..... from users
*/
string strSel = Request.Form["sql"];
SqlDataAdapter MyAdapter = new SqlDataAdapter(strSel,MyConn); // 定义datatable
DataTable dt = new DataTable("myTables"); //向表中添加列名,和水晶报表一致
dt.Columns.Add(new DataColumn("column1"));
dt.Columns.Add(new DataColumn("column2"));
dt.Columns.Add(new DataColumn("column3"));
dt.Columns.Add(new DataColumn("column4"));
dt.Columns.Add(new DataColumn("column5"));
dt.Columns.Add(new DataColumn("column6"));
dt.Columns.Add(new DataColumn("column7"));
//路径可以不同
MyAdapter.Fill(dt); oCR.SetDataSource(dt); // 绑定数据的table
this.SalesDataView.ReportSource = oCR;
SalesDataView.DataBind();
}