asp.net – 如何使用foreach循环清除所有文本框？

发布时间：2020-12-16 07:24:46 所属栏目：asp.Net 来源：网络整理

导读：public void clear() { lblage.Text = ""; lblclosingbirds.Text = ""; lbltypeoffeed.Text = ""; lbltypeoffeedf.Text = ""; lblstdfeed.Text = ""; lblstdfeedf.Text = ""; lblstdhd.Text = ""; lblstdhe.Text = ""; lblExpeggs.Text = ""; lblbirdsf.Text

public void clear()
  {
    lblage.Text = "";
    lblclosingbirds.Text = "";
    lbltypeoffeed.Text = "";
    lbltypeoffeedf.Text = "";
    lblstdfeed.Text = "";
    lblstdfeedf.Text = "";
    lblstdhd.Text = "";
    lblstdhe.Text = "";
    lblExpeggs.Text = "";
    lblbirdsf.Text = "";
    txtacteggs.Text = "";
    txtactfeed.Text = "";
    txtactfeedf.Text = "";      
    txtfemaleclosingstock50.Text = "";
    txtfemaleclosingstock70.Text = "";
    txtmale50kgcstock.Text = "";
    txtmale70kgscstock.Text = "";
    txtmort.Text = "";
    txtmortf.Text = "";
    txtuseeggs.Text = "";
    ddlFemaleFeedtype.SelectedValue = "0";
    ddlMaleFeedtype.SelectedValue = "0";

}

如何使用foreach循环方法替换为clear()..请告诉我..任何一个…
是不是可以编写foreach循环…请告诉我

解决方法

void ClearAllControlsRecursive(Control container)
{
    foreach(var control As Control in container.Controls)
    {
        if(typeof control is TextBox)
        {
            ((TextBox)control).Text = String.Empty;
        }
        if(control.HasControls())
        {
            ClearAllControlsRecursive(control);  
        }
    }
}

然后像这样调用这个方法：

ClearAllControlsRecursive(yourContainer);

您还可以打开控件类型并相应地清除值.

（编辑：李大同）

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