我在模态中添加了一个表单。该模式包含2个下拉列表,4个文本框(1个隐藏)和一个用于添加的按钮。
我绑定项目类别的下拉列表,然后绑定我的项目名称的其他下拉列表。但是,当我在下拉列表中更改项目类别时,我的项目名称的下拉列表没有响应或没有绑定。任何人都可以帮助我吗?
<div id="addModal" class="modal fade">
<div class="modal-dialog modal-md">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title">Add Item</h4>
</div>
<div class="modal-body">
<div class="form-inline form-group">
<asp:Label ID="Label1" CssClass="control-label col-xs-3" runat="server" Text="Category:"></asp:Label>
<div class="col-xs-offset-3">
<asp:DropDownList ID="drpCategory" runat="server" CssClass="form-control col-xs-5" OnTextChanged="drpCategory_TextChanged" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label2" CssClass="control-label col-xs-3" runat="server" Text="Item Name:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtitem" runat="server" CssClass="form-control col-xs-5" Visible="false" />
<asp:DropDownList ID="drpItem" runat="server" CssClass="form-control col-xs-5" Visible="true" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label3" CssClass="control-label col-xs-3" runat="server" Text="Unit:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtUnit" runat="server" CssClass="form-control col-xs-5" Enabled="false" />
</div>
</div>
<div class="form-inline form-group">
<asp:Label ID="Label4" CssClass="control-label col-xs-3" runat="server" Text="Quantity:"></asp:Label>
<div class="col-xs-offset-3">
<asp:TextBox ID="txtQty" runat="server" CssClass="form-control col-xs-3" type="number" min="1" onkeypress="return isNumberKey(event)" />
</div>
</div>
</div>
</div>
<div class="modal-footer">
<asp:Button runat="server" ID="btnADD" CssClass="btn btn-sm" OnClick="btnADD_Click" Text="Add" />
</div>
</div>
</div>
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然后这是背后的代码:
public void drpCategory_TextChanged(object sender, EventArgs e)
{
if (drpCategory.Text == "Others")
{
drpItem.Visible = false;
txtitem.Visible = true;
}
else
{
byCateg();
DataBind();
drpItem.Visible = true;
txtitem.Visible = false;
}
}
我的代码有问题吗?