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Anonymous users2024-02-05For example, create a dbf database in your project directory, and then you need to do the following:1Add include to the new header file, which is used in the cdatabase class.
2.Add import to the last endif""no_namespacerename("eof","rseof"In this case, you need to copy it to the same directory as dbf, which is the project directory, of course you can go to path 3In your own project, e.g. myproc is your project, add **cmyporcapp::
cmyprocapp()4.Create a global variable before the previous function body to use the database} This program automatically registers the data source, of course, you can register the data source manually, it is not troublesome about how to register the data source, and the description is not very detailed, you can refer to the others. However, it is recommended that you do not need to manually register the data source, so that your program portability is not good.
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Anonymous users2024-02-04The path is wrongdatasource=; This line represents the file in the path of dsw, you put it in res, it must be wrong, you try datasource=.What about res. For the path of the current working area, it has not been used for a long time, and it should be right.
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Anonymous users2024-02-03Instead, if it doesn't work, you can refer to it again.
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Anonymous users2024-02-02It's easy to store data, and if you access the database, you can use ADO, which is very simple. You can find Xu Jingzhou's ** to see.
The key is drawing.
If you want to draw this drawing, let's use a simple one, moveto() lineto().Just take a look at these 2 functions.
I'll give you another example of drawing.
MFC control. Plotting curves based on incoming data.
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Anonymous users2024-02-01Pack it and send it to me, I'll get it for you.
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Anonymous users2024-01-31Instead, if it doesn't work, you can refer to it again.
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Anonymous users2024-01-30The string after provider is wrong, you are targeting access2003, and 07 has changed.
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Anonymous users2024-01-29In this case, the analysis may create a form where the data source is in this process, you just need to select the table to be designed or open, and your error, in which case the access will be reported. Wrong measures we recommend to look at the table is to open, close and reopen the new form can be.
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Anonymous users2024-01-28I used ado to connect it to the second floor, which is similar to what I said on the second floor.
It's been a long time, hehe......
I'll go back and tell you.
Executed in one data control.
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It may be an installation error.