Datagridview verification Input

Implement the cellvalidating event of the datagridview control, add content judgment and processing, and set the errtext attribute of row or cell.

--------------------------------------------------------

Private void maid (Object sender, maid E)
{
Double newsl = 0.0;
Datagridview1.rows [E. rowindex]. errortext = string. empty;
If (maid [E. columnindex]. datapropertyname = "dhsl ")
{
If (! Double. tryparse (E. formattedvalue. tostring (), Out newsl) | newsl <0.0)
{
Datagridview1.rows [E. rowindex]. errortext = "quantity input error! ";
E. Cancel = true;
}
}
}

Private void maid (Object sender, maid E)
{
Datagridview1.rows [E. rowindex]. errortext = string. empty;
}