復制代碼 代碼如下:
<body>
<form runat="server">
<div>
姓名：<asp:TextBox runat="server"></asp:TextBox>
<br />
<br />
性別：<asp:RadioButtonList runat="server">
<asp:ListItem>男</asp:ListItem>
<asp:ListItem>女</asp:ListItem>
</asp:RadioButtonList>
密碼：<asp:TextBox runat="server" TextMode="Password"></asp:TextBox>
<br />
移動電話：<asp:TextBox runat="server"
ontextchanged="TextBox3_TextChanged"></asp:TextBox>
<br />
簡介：<br />
<asp:TextBox runat="server"></asp:TextBox>
<br />
<br />
<asp:ImageButton runat="server"
ImageUrl="~/img/QQ截圖20130909140346.png" />
<br />
<br />
<br />
<br />
<br />
</div>
</form>
</body>
textChange的事件代碼如下：
復制代碼 代碼如下:
protected void txtNum2_TextChanged(object sender, EventArgs e)
{
if (txtNum2.Text.Length == 0)
{
//Page.RegisterClientScriptBlock("","<script>alert('請輸入一個數');</script>");
Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('請輸入一個數');</script>");
txtNum2.Focus();
}
else
{
int result;
bool n1 = Information.IsNumeric(txtNum2.Text.Trim());
if (n1)
{
result = int.Parse(txtNum2.Text.Trim()) % 2;
if (result == 0)
{
txtSum.Text = "偶數";
}
else
{
txtSum.Text = "奇數";
}
}
}
}
}
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