.NET客户端的数据验证实例
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.NET客户端的数据验证实例
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Aapx代碼塊
<form?id="form1"?runat="server">
????<asp:TextBox?ID="TextBox1"?runat="server"></asp:TextBox>
????<asp:Button?ID="Button7"?runat="server"?OnClick="Button7_Click"?OnClientClick="javascript:return?checkForm()"??Text="提交"?/>
</form>
JavaScript代碼塊
<script?language="javascript"?type="text/javascript">
????????function?checkForm()?{
????????????if?(document.form1.TextBox1.value?==?"")?{
????????????????alert("怎么是空的!");
????????????????document.form1.TextBox1.focus();
????????????????return?false;
????????????}
????????????var?length?=?document.form1.TextBox1.value.length;
????????????if?(length?<?6?||?length?>?10)?{
????????????????alert("必須是6~10個字符內!");
????????????????return?false;
????????????}
????????}
????
????</script>
<form?id="form1"?runat="server">
????<asp:TextBox?ID="TextBox1"?runat="server"></asp:TextBox>
????<asp:Button?ID="Button7"?runat="server"?OnClick="Button7_Click"?OnClientClick="javascript:return?checkForm()"??Text="提交"?/>
</form>
JavaScript代碼塊
<script?language="javascript"?type="text/javascript">
????????function?checkForm()?{
????????????if?(document.form1.TextBox1.value?==?"")?{
????????????????alert("怎么是空的!");
????????????????document.form1.TextBox1.focus();
????????????????return?false;
????????????}
????????????var?length?=?document.form1.TextBox1.value.length;
????????????if?(length?<?6?||?length?>?10)?{
????????????????alert("必須是6~10個字符內!");
????????????????return?false;
????????????}
????????}
????
????</script>
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