C # datarow data types for help-CodePudding

 
Foreach (DataRow Dr In dt. Rows) 
{
String user=Dr (" user "); 
The string url=Dr (" url "); 
Question: Dr. "pass" is a binary data, how to put it out? 
String pass=Dr (" pass "); An error will not object to a string 
}

CodePudding user response:

You directly the tostring ()
try?

CodePudding user response:

reference 1st floor 姎 jacaranda response:

you directly the tostring () try?

System. Byte []

CodePudding user response:

refer to the second floor isfiefiq response:

Quote: refer to 1st floor 姎 jacaranda response:

Do you direct the tostring ()

System. Byte []

https://www.cnblogs.com/spyplus/p/6291751.html
Take a look at this try line not line

CodePudding user response:

reference 3 floor 姎 jacaranda response:

Quote: refer to the second floor isfiefiq response:

The
Quote: 1/f, reference 姎 jacaranda response:

Do you direct the tostring ()

System. Byte []

https://www.cnblogs.com/spyplus/p/6291751.html
Try to see this line not line

No, the problem is the datarow is an object, so can't conversion, only the tostring ()

CodePudding user response:

Foreach (DataRow item in dt. Rows)
{
If (item) [r]. "pass" GetType ()==typeof (byte []))
{
Byte [] bytes=item (" pass ") as byte [];
}
}

CodePudding user response:

Your dt should check to see if there is data, no questions
The DataTable dtTest=new DataTable ();
DtTest. Columns. The Add (" ID ");
DtTest. Rows. The Add (new Object [] {" 1 "});
Foreach (DataRow Dr In dtTest. Rows)
{
String dd=Dr (" ID "). The ToString (). The Trim ();
}