本文介绍了Formview控件文本框验证的处理方法，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
—SA
—SA
大家好， 我正在使用Formview控件. 我编写了一切用于在Formview控件中使用文本框插入数据的内容，但现在我想验证文本框. 我写了JavaScript进行验证，以不接受空白值输入文本框. 我在<插入项目模板>中单击了两个按钮.每当我按下关闭按钮时，我都想验证我的文本框. 我创建了如下功能. 请任何人可以帮助我. 在此先感谢
Hi to all, I am working on formview control. I wrote everything for inserting data by using textboxes in formview control but now I want to validate textboxes. I wrote javascript for validations not to accept blank values into textboxes. I have taken two buttons in <Insert itemtemplate> and whenever I press the close button I want to validate my textbox. I have created a funtion as below. Please any one can help me. Thanks in advance
<script id="CloseNotesFormView" language="javascript" type="text/javascript"> function validate() { if (document.getElementById("<%=NotesTextBox.ClientID%>").value == "") { alert("You cant close the issue without Note"); document.getElementById("<%=NotesTextBox.ClientID%>").focus(); return false; } else { alert("Issue has been successfully closed"); return true; } } </script>.aspx
.aspx
<asp:Button ID="btnUpdCloseNote" runat="server" CausesValidation="True" Text="Close" Height="21px" Width="60px" onclick="btnUpdCloseNote_Click" OnClientClick="return validate" xmlns:asp="#unknown" ValidationGroup="CloseNote" /><td class="style33" valign="top"> Close Note</td> <td> <asp:TextBox ID="NotesTextBox" runat="server" TextMode="MultiLine" Rows="6" Font-Names=""Lucida Grande",Arial,Lucida,Helvetica,sans-serif" Font-Size="11px" Width="304px"></asp:TextBox> <asp:RequiredFieldValidator ID="rqfCloseNote" runat="server" ErrorMessage="Close Note must be entered" ControlToValidate="NotesTextBox" Display="Dynamic" ValidationGroup="CloseNote">*</asp:RequiredFieldValidator> </td>
推荐答案
不要验证黑色值，只需将其过滤掉，使用户无法输入它们. 例如: Don''t validate black values, simply filter them out, so the user cannot enter them. For example: <html> <head> <script type="text/javascript"><!-- function filterBlank(eventInstance) { eventInstance = eventInstance || window.event; key = eventInstance.keyCode || eventInstance.which; if (key != 32) { return true; } else { if (eventInstance.preventDefault) eventInstance.preventDefault(); eventInstance.returnValue = false; return false; } //if } //filterBlank --></script> </head> <body> <input type="text" onkeypress="filterBlank(event)"/> </body> </html>
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Formview控件文本框验证
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