根据下来列表来动态显示TabControl下的元素
需要准备两个控件:Combobox (命名为:cbPrjType)和 TabControl (命名为:tabPrjType),TabControl下面有六个子元素分别是:tabPage1,tabPage2,tabPage3,tabPage4,tabPage5,tabPage6
我们可以想到加载界面的时候会给cbPrjType绑定元素,代码如下:
private void InitProjectTypeDic() //绑定下拉值
{
string strMsg = "";
CorpProjectAddClass cpas = new CorpProjectAddClass();
dsDic = cpas.GetDicDataSet(out strMsg); //查询定义的字典表
if (dsDic.Tables["XMBL_TbProjectTypeDic_SZ"] != null)
{
this.cbPrjType.Items.Clear(); //清空集合元素
this.cbPrjType.Items.Add(new MyItem("", "")); //为第一个option添加为空
foreach (DataRow dr in dsDic.Tables["XMBL_TbProjectTypeDic_SZ"].Rows)
{
this.cbPrjType.Items.Add(new MyItem(dr["ProjectTypeNum"].ToString(), dr["ProjectTypeName"].ToString()));
}
this.cbPrjType.DisplayMember = "Name"; //显示的属性(显示)
this.cbPrjType.ValueMember = "ID"; //选项中实际的值(隐藏)
this.cbPrjType.SelectedIndex = 0; //默认选中第一个
}
}
其次给cbPrjType添加改变下拉事件SelectedIndexChanged:
private void cbPrjType_SelectedIndexChanged(object sender, EventArgs e)
{
string cbVal=""; //记录当前选中下拉的值
if (cbPrjType.SelectedItem != null && (cbPrjType.SelectedItem as MyItem).ID != "")
cbVal = (cbPrjType.SelectedItem as MyItem).Name; //获取选中下拉的值
else
return;
this.tabPage1.Parent = null; //指定tabPage1的父元素为空(可实现隐藏作用)
this.tabPage2.Parent = null;
this.tabPage3.Parent = null;
this.tabPage4.Parent = null;
this.tabPage5.Parent = null;
this.tabPage6.Parent = null;
JempType(cbVal); //传入选中的值,从而判断显示哪个tabPage
}
根据选中元素的值来进行判断:
private void JempType(string prjType)
{
switch (prjType)
{
case "城市道路工程":
this.tabPage1.Text = "城市道路工程"; //tabPage显示的名称
this.tabPage1.Parent = tabPrjType; //给tabPage指定父元素
tabPrjType.Enabled = true;
break;
case "城市桥梁工程":
this.tabPage2.Text = "城市桥梁工程";
this.tabPage2.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "排水管道":
this.tabPage3.Text = "排水管道";
this.tabPage3.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "供水管道":
this.tabPage3.Text = "供水管道";
this.tabPage3.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "中水管道":
this.tabPage3.Text = "中水管道";
this.tabPage3.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "燃气管道":
this.tabPage3.Text = "燃气管道";
this.tabPage3.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "热力管道":
this.tabPage3.Text = "热力管道";
this.tabPage3.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "污水处理厂":
this.tabPage4.Text = "污水处理厂";
this.tabPage4.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "供水厂":
this.tabPage4.Text = "供水厂";
this.tabPage4.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "给水泵站":
this.tabPage4.Text = "给水泵站";
this.tabPage4.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "排水泵站":
this.tabPage4.Text = "排水泵站";
this.tabPage4.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "垃圾处理工程":
this.tabPage4.Text = "垃圾处理工程";
this.tabPage4.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "城市隧道工程":
this.tabPage5.Text = "城市隧道工程";
this.tabPage5.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "公共交通工程":
this.tabPage6.Text = "公共交通工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "轨道交通工程":
this.tabPage6.Text = "轨道交通工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "环节卫生工程":
this.tabPage6.Text = "环节卫生工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "照明工程":
this.tabPage6.Text = "照明工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "绿化工程":
this.tabPage6.Text = "绿化工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "电力工程":
this.tabPage6.Text = "电力工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
case "通信工程":
this.tabPage6.Text = "通信工程";
this.tabPage6.Parent = tabPrjType;
tabPrjType.Enabled = true;
break;
}
}
如果想循环遍历TabContorl下所有的TextBox控件并赋值为空可以这么写:
foreach (TabPage page in tabControl1.TabPages)
{
foreach (Control control in page.Controls)
{
if (control is TextBox)
{
((TextBox)control) = "";
}
if (control is ComboBox)
{
((ComboBox)control).SelectedIndex = -1;
}
}
}
获取选中下拉的问本值:
comboBox1.GetItemText(comboBox1.Items[comboBox1.SelectedIndex]);
实现效果如下: