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There are several reasons why this is happening. One of the major reasons is your CString is nothing but an internal typecast of LPCSTR. A '\0' indicates a null termination and end of string. Hence, the problem. <br />
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May I ask you what you are trying to achieve with this technique ? <br />

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There are several reasons why this is happening. One of the major reasons is your CString is nothing but an internal typecast of LPCSTR. A '\0' indicates a null termination and end of string. Hence, the problem.

May I ask you what you are trying to achieve with this technique ?


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In your DoDataExchange function use RFX_Binary() rather than RFX_Text(). &nbsp;RFX_Binary requires a parameter of type CByteArray&amp;, so either convert your CString to a CByteArray or use CByteArray to manipulate your strings rather than CString.<br />

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In your DoDataExchange function use RFX_Binary() rather than RFX_Text().  RFX_Binary requires a parameter of type CByteArray&, so either convert your CString to a CByteArray or use CByteArray to manipulate your strings rather than CString.


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It should work as ODBC supports conversions between all character types and SQL_VARBINARY. &nbsp;Try it. &nbsp;If it doesn't work the way you want, you may need to make your own RFX_ function. <br />

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It should work as ODBC supports conversions between all character types and SQL_VARBINARY.  Try it.  If it doesn't work the way you want, you may need to make your own RFX_ function.


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MS Access has no trouble allowing the null character in a text field, and MS C++ has no trouble allowing the null character in a CString. &nbsp;However, when I construct a CString with the null character in the middle, CString(&quot;Hi\0Joe&quot;,7) and then use AddNew to write that field into an Access database text field, the string gets truncated at the \0.<br />
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Anyone know a fix for this?
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MS Access has no trouble allowing the null character in a text field, and MS C++ has no trouble allowing the null character in a CString.  However, when I construct a CString with the null character in the middle, CString("Hi\0Joe",7) and then use AddNew to write that field into an Access database text field, the string gets truncated at the \0.

Anyone know a fix for this?

ODBC/CRecordset &amp; Null characters

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.

ODBC/CRecordset &amp; Null characters

ODBC/CRecordset & Null characters