根据另一个组合框属性操作组合框
我有两个组合框 comboBox1 &组合框2。我会更改 comboBox1 & 的一些属性comboBox2 取决于 comboBox1 的 SelectedItem。我在 Form1_Load 块中编写了以下代码：
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {
if(this->comboBox1->SelectedItem=="Letters"){
this->comboBox1->Size=System::Drawing::Size(238,27);
this->comboBox1->Location=System::Drawing::Point(301,73);
this->comboBox2->Visible= true;
}
else{
this->comboBox1->Size=System::Drawing::Size(473,27);
this->comboBox2->Visible= false;
}
}
但它不起作用！
I have two comboBoxes comboBox1 & comboBox2. I would change some properties of comboBox1 & comboBox2 depending on the SelectedItem of comboBox1. I wrote the following code in Form1_Load block:
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) {
if(this->comboBox1->SelectedItem=="Letters"){
this->comboBox1->Size=System::Drawing::Size(238,27);
this->comboBox1->Location=System::Drawing::Point(301,73);
this->comboBox2->Visible= true;
}
else{
this->comboBox1->Size=System::Drawing::Size(473,27);
this->comboBox2->Visible= false;
}
}
But it doesn't work!
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该代码应该位于 Form1_Load 事件内吗？我认为它应该在comboBox1的SelectedIndexChanged事件下。
Is that code supposed to be inside the Form1_Load event? I think it should be under the comboBox1's SelectedIndexChanged event.