我有一个GridView和一个TextBox。如果我们在TextBox中输入文本,我想清除GridView中的所有行。如何使用JavaScript?
在页面加载中,我从BackEnd填充网格。它可能有行或没有。但是当我在TextBox中输入文本时,我想要清除GridView。
这是我的源代码。
<table>
<tr>
<td>
<asp:TextBox ID="txtPercentage" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:GridView ID="gvAttribute" runat="server" AutoGenerateColumns="False" CssClass="datagrid"
EnableTheming="False" DataKeyNames="TaxAttributeID" OnRowDataBound="gvAttribute_RowDataBound"
OnSelectedIndexChanged="gvAttribute_SelectedIndexChanged" Width="100%">
<EmptyDataTemplate>
<table width="100%" border="0" cellpadding="0" cellspacing="1">
<tr>
<th scope="col">
Attribute Name
</th>
<th scope="col">
Tax Percentage
</th>
<th scope="col">
Reference Amount
</th>
<th scope="col">
Reference Amount
</th>
<th scope="col">
Sign
</th>
<th scope="col">
Tax Amount
</th>
</tr>
</table>
</EmptyDataTemplate>
<AlternatingRowStyle CssClass="table_oddrow" />
<Columns>
<asp:BoundField DataField="TaxAttributeID" HeaderText="TaxAttributeID" Visible="False" />
<asp:BoundField DataField="TaxAttributeName" HeaderText="Attribute Name" />
<asp:BoundField DataField="TaxPercentage" HeaderText="Tax Percentage" />
<asp:BoundField DataField="ReferenceAmount" HeaderText="Reference Amount" />
<asp:BoundField DataField="ReferenceTypeID" HeaderText="ReferenceTypeID " Visible="False" />
<asp:BoundField DataField="ReferenceType" HeaderText="Reference Type" />
<asp:TemplateField HeaderText="CrDrIndicator" Visible="False">
<ItemTemplate>
<asp:Label ID="lblCrDrIndicator" runat="server" Text='<%# Bind("CrDrIndicator") %>'></asp:Label></ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="CrDrIndicatorName" HeaderText="Sign" />--%>
<asp:TemplateField HeaderText="Sign">
<ItemTemplate>
<asp:TextBox ID="txtgvSign" runat="server" Text='<%# Bind("CrDrIndicatorName") %>'
Style="background-color: Transparent; border: 0px;">
</asp:TextBox>
</ItemTemplate>
<ControlStyle Width="50px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Tax Amount">
<ItemTemplate>
<asp:TextBox ID="txtgvTaxAmount" runat="server" Text='<%# Bind("TaxAmount") %>' Style="background-color: Transparent;
border: 0px;"></asp:TextBox></ItemTemplate>
<ControlStyle Width="75px" />
</asp:TemplateField>
<asp:BoundField DataField="DiscountText" HeaderText="Discount Text" Visible="False" />
<asp:TemplateField HeaderText="Formula Text" Visible="False">
<ItemTemplate>
<asp:Label ID="lblFormulaText" runat="server" Text='<%# Bind("FormulaText") %>'></asp:Label></ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="TaxAmount" HeaderText="Tax Amount" />--%>
<asp:TemplateField Visible="False">
<ItemTemplate>
<asp:LinkButton ID="lnkSelect" runat="server" CommandName="select" Text="select" /></ItemTemplate>
</asp:TemplateField>
</Columns>
<HeaderStyle ForeColor="White" />
<PagerStyle CssClass="pager_style" />
<RowStyle CssClass="table_evenrow" />
<SelectedRowStyle CssClass="rowselect" />
</asp:GridView>
</td>
</tr>
</table>
答案 0 :(得分:1)
沿着这些方向应该做的事情。
<script>
$('#<%# txtPercentage.ID %>').bind("change", function(){
$('#<%# gvAttribute.ID %> table tbody tr').remove();
});
</script>
我假设您正在使用jQuery。我们需要访问ASP.NET为HTML节点生成的客户端ID。
答案 1 :(得分:1)
将网格包裹在DIV
并捕获文本框的onchange
事件。在文本innerHTML
事件中清除DIV的onchange
。
答案 2 :(得分:1)
试试这个。
代码隐藏
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
string script = String.Format("javascript:return DeleteGridView('{0}');", gvAttribute.ClientID);
txtPercentage.Attributes.Add("onkeydown", script);
}
}
的JavaScript
function DeleteGridView(grid_id) {
var grid = document.getElementById(grid_id);
if (grid.parentNode) {
grid.parentNode.removeChild(elem);
}
return false;
}