鍦ˋSP.Net涓紝鍙互浣跨敤RequiredFieldValidator鎺т欢鏉ラ獙璇佺敤鎴疯緭鍏ョ殑鏁版嵁鏄惁涓虹┖銆備互涓嬫槸RequiredFieldValidator鐨勪娇鐢ㄦ楠わ細

1. 鍦ˋSP.Net鐨刉eb琛ㄥ崟涓紝灏哛equiredFieldValidator鎺т欢娣诲姞鍒伴渶瑕侀獙璇佺殑杈撳叆瀛楁鐨勬梺杈广€備緥濡傦紝濡傛灉鏈変竴涓枃鏈闇€瑕侀獙璇侊紝鍒欏彲浠ュ皢RequiredFieldValidator鎺т欢鏀惧湪鏂囨湰妗嗙殑涓嬫柟銆?/li>

<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvName" runat="server" ControlToValidate="txtName" ErrorMessage="璇疯緭鍏ュ鍚?quot;></asp:RequiredFieldValidator>

2. 鍦≧equiredFieldValidator鎺т欢鐨勫睘鎬т腑锛岃缃瓹ontrolToValidate灞炴€т负闇€瑕侀獙璇佺殑杈撳叆瀛楁鐨処D銆傝繖鏍凤紝褰撶敤鎴锋彁浜よ〃鍗曟椂锛孯equiredFieldValidator鎺т欢灏嗕細楠岃瘉杩欎釜杈撳叆瀛楁鏄惁涓虹┖銆?/p>

3. 鍙互閫氳繃ErrorMessage灞炴€ф潵璁剧疆褰撻獙璇佸け璐ユ椂鐨勯敊璇俊鎭€傚綋杈撳叆瀛楁涓虹┖鏃讹紝RequiredFieldValidator鎺т欢浼氭樉绀鸿繖涓敊璇俊鎭€?/p>

4. 鑻ヨ鏄剧ず閿欒淇℃伅锛屽彲浠ュ湪椤甸潰涓婃坊鍔犱竴涓狶abel鎺т欢锛屽苟璁剧疆AssociatedControlID灞炴€т负RequiredFieldValidator鎺т欢鐨処D銆?/p>

<asp:Label ID="lblNameError" runat="server" AssociatedControlID="rfvName" CssClass="error"></asp:Label>

5. 鍦ㄥ悗绔唬鐮佷腑锛屽彲浠ラ€氳繃Page.IsValid灞炴€ф潵鍒ゆ柇琛ㄥ崟鏄惁閫氳繃楠岃瘉銆?/li>

protected void btnSubmit_Click(object sender, EventArgs e)
{
    if (Page.IsValid)
    {
        // 鎵ц鎻愪氦鎿嶄綔
    }
}

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