how to add database field in crystal report

Today, I encountered two problems when using oracle + Crystal Report (included) + VS.2005 to process image data: 1. How to bind the field type when Typed DataSet processes the byte [] database; The personalPhoto dataType should be byte []. In vs2003, The Base64String type is directly available. the type specified in

Dynamic fields do not come out before, sorrow die.Later found actually quite simple, it seems that as long as the data of multiple repeating fields, it can be automatically discharged, as long as they put in Section3 (details):C0 to C14 are the fields that will be repeated output (data is not duplicated, such as LISTIn this way, it is possible to have a dynamic field, although it is still a bit limited feelingThen I found that I have a picture (has

The formula fields are as follows: If {maintable. botherdoc} = "on" thenChrw (254)ElseChrw (168) Maintable. botherdoc is a string value obtained from the check box through fromconnection. It is "on" When selected, and null when not selected. The preceding formula field can be executed normally only when the value is on, that is, else will never be executed. Other environments: The crystal

=.; Database=xxs;uid=sa;pwd=123"; 3 conn2. Open (); 4SqlCommand CMD2 =NewSqlCommand ();5Cmd2. Connection =conn2;6Cmd2.commandtype =CommandType.Text;7 stringSQL2 ="INSERT INTO Xxs_1 (ques) VALUES (@ques)"; 8sqlparameter[] Parameters2 =Newsqlparameter[]9 { Ten NewSqlParameter ("@ques", F) One A }; -Cmd2.commandtext =sql2; - C

Problem:In the crystal report, because the fields of the data source are not fixed, can I dynamically add fields at runtime, just like dynamically adding controls in winform? (Updated: 2003-11-05)--------------------------------------Solution:Use "formula field"1. Define several "formula fields" according to the maximu

Knowledge in this article involves:Visual Studio. NET embedded CRYSTAL REPORTApplicable:Only the reported versionLicenseKey number Outline An additional license (activating the product's key number) was purchased for report 9 ). How can I add these additional licenses to report 9? ================================

the same as a common field. just drag it to the template. Setp2: Let's use the program to load images on the disk.In fact, with the last practice of "display of arbitrary selection of specified fields in the Crystal Report", this idea is very clear.It is to first create a report that is consistent with the

// Header file Definition _ Connectionptr m_pconnection;_ Recordsetptr m_precordset;Icroleobjectptr pcroleobj;Igraphobjectptr pchartobj;Isectionsptr functions;Isectionptr ction;Iparameterfielddefinitionsptr pparamfields;Iparameterfielddefinitionptr pparamfield; Ilineobjectptr plineobj; // CPP implementation M_application.createinstance (_ uuidof (Application ));_ Bstr_t strrptname = "E: // cri.pdf // multdetailsexamp // dataandpic. rpt ";_ Bstr_t strpicname = "E: // criw.// multdetailsexamp // a

Crystal Reports, program development is a page, deployed to the server and then two pages.After these days of research is the server on the Crystal Report printer settings are incorrectThe local Crystal Report printer is set to Microsoft XPS Document WriterView only Microsof

M_application.createinstance (_ uuidof (Application ));_ Bstr_t strrptname = "E: // cri.pdf // multdetailsexamp // dataandpic. rpt ";_ Bstr_t strpicname = "E: // cri.pdf // multdetailsexamp // areastudytemp.bmp "; // I don't know why. If the size of the newly modified image is not adjusted before the report is opened, a dialog box will pop up, saying that the link is incorrect. I don't know why, expected Solution Hinstance hint = ShellExecute (this->

On the ASPX page, set connectionstring and parameters to input a report, and use crystalreportviewer to use exporttohttpresponse to output a PDF file for download. Private void exportpdfreport () { If (file. exists (mappath ("~ /Reports/dropshipinvoice. rpt "))){ ReportDocument rptdropshipinvoice = new reportdocument (); // Obtain the report location and LoadRptdropshipinvoice. Load (mappath ("~ /R

Reference some code. I didn't think so much about it. I just kept it for reference. I don't need to take this document back and forth in the future. Public String username = string. empty;Public String number = string. empty;/// /// Crystal Report 1/// Private void initrept (){Try{Datatable dt = new datatable ("pzhtable ");DT. Columns. Add ("name ");DT. Columns.

Therefore, a total field is similar to a Function control because both are evaluated when the report is generated. But there are some differences: a Function control can only be placed in a group footer, and a total field can be placed in any part of the data Report Designer, excluding the

Add a delete modify field with an SQL statement 1. Add Field ALTER TABLE DOCDSP add Dspcode char (200) 2. Delete fields ALTER TABLE table_name DROP COLUMN column_name 3. Modify the field type ALTER TABLE table_name ALTER COLUMN CO