bool isrepeat; //Determine whether the data is repeated.
string er="The following data in the comparison column is repeated:";
for (int i = 0; i <dt1.Rows.Count-1; i++) //Verify whether there is repeated data
{
isrepeat = false;
for (int j = dt1.Rows.Count-1; j >i ; j--)
{
if (dt1.Rows[i][0].ToString() == dt1.Rows[j][0].ToString())
{
dt1 .Rows.RemoveAt(j);
isrepeat = true;
}
}
if (isrepeat)
{
er = er + dt1.Rows[i][0].ToString()+",";
}
}
string er="The following data in the comparison column is repeated:";
for (int i = 0; i <dt1.Rows.Count-1; i++) //Verify whether there is repeated data
{
isrepeat = false;
for (int j = dt1.Rows.Count-1; j >i ; j--)
{
if (dt1.Rows[i][0].ToString() == dt1.Rows[j][0].ToString())
{
dt1 .Rows.RemoveAt(j);
isrepeat = true;
}
}
if (isrepeat)
{
er = er + dt1.Rows[i][0].ToString()+",";
}
}