private void textBox1_TextChanged(object sender, EventArgs e)
{
int num;
if (int.TryParse(textBox1.Text, out num))
{
DataTable dt = new DataTable();
string str = "select * from userInfo where userID ='" + textBox1.Text + "'";
dt = operate.getTables(str);
int i = dt.Rows.Count;
dt.Dispose();
if (i > 0)
{
textBox1.ForeColor = Color.Red;
label2.BorderStyle = BorderStyle.FixedSingle;
}
else
{
textBox1.ForeColor = Color.Black;
label2.BorderStyle = BorderStyle.None;
}
}
else
{
textBox1.ForeColor = Color.Red;
label2.BorderStyle = BorderStyle.FixedSingle;
}
}
private void userAuthValue_SelectedIndexChanged(object sender, EventArgs e)
{
switch (userAuthValue.Text)
{
case "毕业生": {
if (stuIDValue.Text.Trim() == "")
{
stuIDKey.BorderStyle = BorderStyle.FixedSingle;
stuIDValue.ForeColor = Color.Red;
}
else
{
string str = "select * from stuInfo where stuID ='" + stuIDValue.Text + "'";
DataTable dt = operate.getTables(str);
int i = dt.Rows.Count;
dt.Dispose();
if (i <= 0)
{
stuIDValue.ForeColor = Color.Red;
stuIDKey.BorderStyle = BorderStyle.FixedSingle;
}
else
{
stuIDValue.ForeColor = Color.Black;
stuIDKey.BorderStyle = BorderStyle.None;
}
}
break;
}
case "教师": {
if (teaNameValue.Text.Trim() == "")
{
teaNameKey.BorderStyle = BorderStyle.FixedSingle;
teaNameValue.ForeColor = Color.Red;
}
else
{
teaNameKey.BorderStyle = BorderStyle.None;
teaNameValue.ForeColor = Color.Black;
}
break;
}
case "企业":
{
if (corIDValue.Text.Trim() == "")
{
corIDKey.BorderStyle = BorderStyle.FixedSingle;
corIDValue.ForeColor = Color.Red;
}
else
{
string str = "select * from corInfo where corID ='" + corIDValue.Text + "'";
DataTable dt = operate.getTables(str);
int i = dt.Rows.Count;
dt.Dispose();
if (i <= 0)
{
corIDValue.ForeColor = Color.Red;
corIDKey.BorderStyle = BorderStyle.FixedSingle;
}
else
{
corIDValue.ForeColor = Color.Black;
corIDKey.BorderStyle = BorderStyle.None;
}
}
break;
}
case "管理":
{
if (adNameValue.Text.Trim() == "")
{
adNameKey.BorderStyle = BorderStyle.FixedSingle;
adNameValue.ForeColor = Color.Red;
}
else
{
adNameKey.BorderStyle = BorderStyle.None;
adNameValue.ForeColor = Color.Black;
}
break;
}
default: break;
}
}
