如何清除文本框

本文介绍了如何清除文本框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我是asp.net的新手，这个问题似乎很傻，但是我真的不知道出什么问题了.

我在清除文本框时遇到问题.
我尝试了textbox.text=string.empty，textbox.text=""，但是这些似乎都没有帮助，只是没有清除文本框.

有人可以告诉我是否在代码中设置了不允许我清除文本框的内容吗?

Hi,

I am new to asp.net.and this question seems pretty silly, but I really can''t figure out what is wrong.

I am having an issue with clearing the textbox.
I tried textbox.text=string.empty, textbox.text="" but none of these seem to help, the textbox just doesn''t get cleared.

Can someone tell me if I have set something in the code that''s not allowing me to clear the textbox?

<asp:TextBox ID="TextBox3" runat="server" Width="177px" ontextchanged="TextBox3_TextChanged" Height="16px" style="margin-left: 5px"></asp:TextBox>

protected void Button11_Click(object sender, EventArgs e)
{
  Panel1.Visible = false; DropDownList5.ClearSelection();
  TextBox3.Text = string.Empty;
}

[/Edit]

推荐答案

protected void Button1_Click(object sender, EventArgs e)
 {
     TextBox1.Text = String.Empty;
     TextBox2.Text = String.Empty;
 }

HTML代码

HTML Code

<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><asp:TextBox ID="TextBox2"

            runat="server"></asp:TextBox><asp:Button ID="Button1" runat="server"

            Text="Button" onclick="Button1_Click" />
    </div>
    </form>
</body>

它对我有用....

It''s working For me....

protected void Button1_Click(object sender, EventArgs e)
{
Textbox1.Text="";//this for clear the text box
DropDownList1.ClearSelection();
}//this for clear thr dropdownlist

这篇关于如何清除文本框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

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