winform(c#)关于treeview打开多个panel的问题，急！

xirumeili 2008-01-22 10:18:31

我需要做一个小软件，用一个splitcontainner把form1界面分成左右。左边放一个treeview1，有四个主节点，没有子节点，把四个节点的text分别设成“0”，“1”，“2”，”3“。右边放了四个panel，并且dock都是fill.我想每次点击一个节点显示对应的一个panel的内容。我的程序如下：
private void treeView1_AfterSelect (objectsender,TreeViewEventArgs e)
{

switch(treeView1.SelectedNode.Text.ToString())
{
case "0":

panel1.Visible=true;
panel2.Visible = false;
panel3.Visible = false;
panel4.Visible = false;
break;

case "1":
panel2.Visible=true;
panel1.Visible = false;
panel3.Visible = false;
panel4.Visible = false;
break;

case "2":
panel3.Visible = true;
panel1.Visible = false;
panel2.Visible = false;
panel4.Visible = false;
break;
case "3":
panel4.Visible = true;
panel1.Visible = false;
panel2.Visible = false;
panel3.Visible = false;
break;
}
}

但是每次执行时就只有点击第一个节点时第一个要显示的Panel显示出来，点其它三个节点，没有反应，相应的panel不会被显示。请问，我这个小程序错在哪里，或者是缺少什么？多谢了，我对c#编程不熟，我郁闷好长时间了！能不能帮帮我？多谢了！

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kebare 2008-01-23

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你是不是不小心把panel2、panel3、panel4添加到panel1里面了，作为panel1的子控件了
看看自动生成的代码

ganlu423 2008-01-23

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defalut:
break;
应该有影响

cheng7xicx_jsp 2008-01-23

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断点看看

wzuomin 2008-01-23

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case语句中不用设置visible属性吧，可以直接调用PanelX.BringToFront()
显示PanelX。

yuanmanguo 2008-01-23

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private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
switch (treeView1.SelectedNode.Text.ToString())
{
case "0":

panel1.Visible = true;
panel1.Dock = System.Windows.Forms.DockStyle.Fill;
panel2.Dock = System.Windows.Forms.DockStyle.None;
panel3.Dock = System.Windows.Forms.DockStyle.None;
panel4.Dock = System.Windows.Forms.DockStyle.None;
panel2.Visible = false;
panel3.Visible = false;
panel4.Visible = false;
break;

case "1":
panel2.Visible = true;
panel2.Dock = System.Windows.Forms.DockStyle.Fill;
panel1.Dock = System.Windows.Forms.DockStyle.None;
panel3.Dock = System.Windows.Forms.DockStyle.None;
panel4.Dock = System.Windows.Forms.DockStyle.None;
panel1.Visible = false;
panel3.Visible = false;
panel4.Visible = false;
break;

case "2":
panel3.Visible = true;
panel3.Dock = System.Windows.Forms.DockStyle.Fill;
panel2.Dock = System.Windows.Forms.DockStyle.None;
panel1.Dock = System.Windows.Forms.DockStyle.None;
panel4.Dock = System.Windows.Forms.DockStyle.None;
panel1.Visible = false;
panel2.Visible = false;
panel4.Visible = false;
break;
case "3":
panel4.Visible = true;
panel4.Dock = System.Windows.Forms.DockStyle.Fill;
panel2.Dock = System.Windows.Forms.DockStyle.None;
panel3.Dock = System.Windows.Forms.DockStyle.None;
panel1.Dock = System.Windows.Forms.DockStyle.None;
panel1.Visible = false;
panel2.Visible = false;
panel3.Visible = false;
break;
}

}