[英]Validate dynamically added UserControl
i have added a usercontrol dynamically to a panel of winform i have added the control dynamically so i want to validate the control in the winform so i have used this method 我已将用户控件动态添加到winform面板中,我已动态添加控件,因此我想验证winform中的控件,因此我使用了此方法
private bool mobilemanu()
{
return panel1.Controls.OfType<UserControl1>().Select(uc => uc.comboBox1).Any(cb => cb.Text == String.Empty);
}
and in the button click event i used 并在我使用的按钮单击事件中
private void button2_Click(object sender, EventArgs e)
{
bool mobil = mobilemanu();
if (!mobil)
{
//do this
}
else
{
//do that
}
}
also along with such i used this code for showing which control is not filled properly but it is only showing first control as errored i am a newbie to programming so i am little bit confused here 以及这样的我使用此代码来显示哪个控件没有正确填充,但它仅显示第一个控件为错误我是编程的新手,所以我在这里有点困惑
private void mobilemanuval()
{
bool val = mobilemanu();
if (val == true)
{
foreach (Control ctrl in panel1.Controls)
{
if (ctrl is UserControl1)
{
UserControl1 myCrl = ctrl as UserControl1;
{
if (myCrl.comboBox2.Text == string.Empty)
{
errorProvider1.SetError(myCrl.comboBox1, "entersomething");
}
if (myCrl.comboBox2.Text == string.Empty)
{
errorProvider1.SetError(myCrl.comboBox2, "entersomething");
}
}
}
}
}
}
Maybe you just mixed up controls because their names only differ in last letter of the name (digit)? 也许您只是混淆了控件,因为它们的名称仅在名称的最后一个字母(数字)不同? Does this work:
这项工作:
if (myCrl.comboBox1.Text == string.Empty)
{
errorProvider1.SetError(myCrl.comboBox1, "entersomething");
}
if (myCrl.comboBox2.Text == string.Empty)
{
errorProvider1.SetError(myCrl.comboBox2, "entersomething");
}
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