首先,我是 C# 编程的新手,当我以 PDF 格式生成水晶报告时,我正面临无法评估表达式,因为代码已优化或本机框架位于调用堆栈顶部我已经搜索过在谷歌的答案,也看到了很多链接,包括这个,但没有任何帮助我谁能告诉我会是什么错误
我试过的代码是,
protected void getpkeybt_Click(object sender, EventArgs e)
{
bool ch = checkFromToDate();
int i=checkTxt();
if ( ch == true && i==1)
{
try
{
Response.Buffer = false;
Response.ClearContent();
Response.ClearHeaders();
ReportDocument rpt = new ReportDocument();
DateTime dt = DateTime.Parse(frmtxtdt.Text);
DateTime dt1 = DateTime.Parse(frmtxtdt.Text);
string frtxt = String.Format("{0:MM-dd-yyyy}", dt);
string totxt = String.Format("{0:MM-dd-yyyy}", dt1);
DataSet ds = Namespace.SP.EStoredprocedure(frtxt,totxt).GetDataSet();
if (!IsPageRefresh)
{
if (ds.Tables[0].Rows.Count > 0
&& frtxt == ds.Tables[0].Rows[0]["Date"].ToString()
&& totxt == ds.Tables[0].Rows[0]["Date"].ToString())
{
ds.Tables[0].TableName = "Passkeys";
ds.WriteXml(Server.MapPath("~/XML/Passkeys.xml"));
string filename = Server.MapPath("~/Upload/Pkey_rpt.rpt");
rpt.Load(filename);
rpt.SetDataSource(ds);
rpt.ExportToHttpResponse(ExportFormatType.PortableDocFormat, Response, true, "Passkeys");
}
else if(frmtxtdt.Text.Trim() !=null && totxtdt.Text.Trim()!=null)
{
if (frtxt == ds.Tables[0].Rows[0]["Date"].ToString()
&& totxt == ds.Tables[0].Rows[0]["Date"].ToString()
&& ds.Tables[0].Rows.Count == 0)
{
lblmsg.Text = "Pass Key(s) Not Yet Delivered for the Selected Date...";
}
else
{
lblmsg.Text = "There is No Schedule for the Selected date....";
}
}
}
}
catch (Exception ex)
{
lblmsg.Text = ex.Message;
}
}
}