Get datarow[] Value Example _ Practical tips

First, datarow[] dr = dt. Select ("T1= ' A '"); The result is an array, so you just loop through the array.

Copy Code code as follows:

String x= "";
if (Dr. Length > 0)
{
foreach (DataRow DrN in DR)
{
x+=drn["T2"]; The value of the T2 column after the loop gets the filter condition
}
}

Note that the value of the first few lines can also be obtained: if you want to get a filtered value, you can get it by using the following sentence
String x=dr[0]["T2"]. Tostring ();//Gets the value of the first row of T2 field after the filter.