我正在开发一个表格，我有一个GridView。在GridView的每一行中，我有一个DropDownList，其值为Present＆amp;缺席和一些TextBoxes和一个提交按钮。
如果我选择Present，则所有TextBox都会启用并输入值。
如果我选择Absent，那么所有TextBox都会被禁用。
在提交按钮上，我想写一个JQuery或Javascript代码来检查用户是否选择了“存在”并且没有输入标记并且想要显示警告。
我尝试过遵循JQuery Code，但我不明白我在该代码中做错了什么。
$("#<%=grdOJTResult.ClientID%> tr").each(function () {
var Value = $(this).closest("tr").find("select[id*=ddlStatus]").val();
if (Value == 0) {
if ($(this).closest("tr").find("input[id*=txtAttendance]").val() == "") {
alert("Please Enter Attendance.");
$(this).closest("tr").find("input[id*=txtAttendance]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtWritten]").val() == "") {
alert("Please Enter Written Marks.");
$(this).closest("tr").find("input[id*=txtWritten]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtTurnOut]").val() == "") {
alert("Please Enter TurnOut Marks.");
$(this).closest("tr").find("input[id*=txtTurnOut]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtSmartness]").val() == "") {
alert("Please Enter Smartness Marks.");
$(this).closest("tr").find("input[id*=txtSmartness]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtKnowledge]").val() == "") {
alert("Please Enter Knowledge Marks.");
$(this).closest("tr").find("input[id*=txtKnowledge]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtLanguage]").val() == "") {
alert("Please Enter Language Marks.");
$(this).closest("tr").find("input[id*=txtLanguage]").focus();
return false;
}
else if ($(this).closest("tr").find("input[id*=txtAttitude]").val() == "") {
alert("Please Enter Attitude Marks.");
$(this).closest("tr").find("input[id*=txtAttitude]").focus();
return false;
}
}
});
下面是我的GridView。
<asp:GridView ID="grdOJTResult" runat="server" AutoGenerateColumns="false" Width="98%"
CssClass="mGrid" DataKeyNames="EmpId,BatchId" HorizontalAlign="Center">
<Columns>
<asp:BoundField DataField="EmpCode" HeaderText="Employee Code" ItemStyle-HorizontalAlign="Center">
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:BoundField DataField="EmpFullName" HeaderText="Employee Name" ItemStyle-HorizontalAlign="Center">
<ItemStyle HorizontalAlign="Center" />
</asp:BoundField>
<asp:TemplateField HeaderText="ATTENDANCE (16)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtAttendance" Width="50px" MaxLength="4" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender1" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtAttendance" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="WRITTEN MARKS (34)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtWritten" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender2" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtWritten" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="TURN OUT (10)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtTurnOut" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender3" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtTurnOut" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="SMARTNESS (10)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtSmartness" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender4" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtSmartness" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="KNOWLEDGE (10)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtKnowledge" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender5" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtKnowledge" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="LANGUAGE (10)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtLanguage" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender6" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtLanguage" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="ATTITUDE (10)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtAttitude" Width="50px" MaxLength="3" runat="server" ></asp:TextBox>
<Cc1:FilteredTextBoxExtender ID="FilteredTextBoxExtender7" runat="server" Enabled="True"
FilterType="Custom,Numbers" TargetControlID="txtAttitude" ValidChars=".">
</Cc1:FilteredTextBoxExtender>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="TOTAL MARKS (100)" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:TextBox ID="txtTotal" Width="50px" MaxLength="3" runat="server" ReadOnly="true"></asp:TextBox>
</ItemTemplate>
<ItemStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="STATUS" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:DropDownList ID="ddlStatus" Width="50px" runat="server" CssClass="ddlRes">
<asp:ListItem Text="Present" Value="0"></asp:ListItem>
<asp:ListItem Text="Absent" Value="1"></asp:ListItem>
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
答案 0 :(得分：0)
尝试：
$("#<%=grdOJTResult.ClientID%> tr").each(function () {
var Value = $(this).find('select[id$="ddlStatus"]').val();
});
演示：