Just learned, just done, ask questions

eyesfish

string txtFileName = @ "D:\" + DropDownList1.SelectedValue;

I mean, I used the drop-down menu to select a text file. When I want to read the address of this file, it is written as above, and an exception is thrown when executing the following code

Please give pointers

4319231

What the hell is that?

eyesfish

Is it okay to write like this?
It is executed in the catch, I did not specifically define the catch

lieren

The file may not exist. Post the exception.

eyesfish

The file exists, I read the file of the D drive into the drop-down menu, and then of course the specific selected file exists

string txtFileName = @ "D:\" + DropDownList1.SelectedValue;
Connect to the database;
try {
Read the line;
Write;)
catch {an output statement;
}

gallup

Are you sure that DropDownList1.SelectedValue stores the file name instead of just setting DropDownList1.SelectedItem.Text?

eyesfish

It seems that the problem is not here. The following lines of data are read out.
May be the problem is the database inserted, huh, huh

eyesfish

Hey alright