private void ChangeColor(Control Txt)
{
Thread th = new Thread(() =>
{
while (Txt.Focused)
{
continue;
}
if (string.IsNullOrEmpty(Txt.Text.Trim()))
{
switch (Txt.Name)
{
case "Txt_DataSource":
{
Txt_DataSource.Text = "数据库地址";
Txt_DataSource.SelectAll();
break;
}
case "Txt_InitialCatalog":
{
Txt_InitialCatalog.Text = "数据库名";
Txt_InitialCatalog.SelectAll();
break;
}
case "Txt_UserID":
{
Txt_UserID.Text = "用户名";
Txt_UserID.SelectAll();
break;
}
case "Txt_Password":
{
Txt_Password.Text = "密码";
Txt_Password.SelectAll();
break;
}
}
Txt.ForeColor = Color.Silver;
}
else
{
if (Equals(Txt.Text.Trim(), "数据库地址") || Equals(Txt.Text.Trim(), "数据库名") || Equals(Txt.Text.Trim(), "用户名") || Equals(Txt.Text.Trim(), "密码"))
{
Txt.ForeColor = Color.Silver;
}
else
{
Txt.ForeColor = Color.Black;
}
}
});
th.IsBackground = true;
th.Start();
}
private void Txt_DataSource_Click(object sender, EventArgs e)
{
Txt_DataSource.SelectAll();
}