我已将 RowDataBound 用于gridview。下面是我的 C# 代码
protected void gvParameterValue_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label lblLocID = (Label)e.Row.FindControl("lblLocationID");
if(condition)
{
TextBox txtBox = (TextBox)e.Row.FindControl("txtValue");
txtBox.Attributes.Add("onchange", "ValueOnChange();");
}
}
}
网格视图的 Asp.Net 代码
<asp:UpdatePanel ID="updatePanel" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" />
</Triggers>
<ContentTemplate>
<asp:GridView ID="gvParameterValue" SkinID="GridView" runat="server" OnRowDataBound ="gvParameterValue_RowDataBound" AutoGenerateColumns="False">
<Columns>
<asp:TemplateField HeaderText="Location Name">
<asp:TemplateField HeaderText="Parameter Value">
<ItemTemplate>
<asp:TextBox ID="txtValue" SkinID="fineLineTextBox" TabIndex="1" runat="server" AutoPostBack="false"></asp:TextBox>
<%--<asp:TextBox ID="TextBox1" SkinID="fineLineTextBox" TabIndex="1" runat="server" OnTextChanged="textBox1_textChanged" AutoPostBack="true"></asp:TextBox>--%>
<asp:Label ID="lblPreDayVal" runat="server" Text='<%# Bind("PreviousValue") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate >
</asp:UpdatePanel>
js函数如下,我有问题
function ValueOnChange()
{
var val = document.getElementById('lblPreDayValue').value;
}
它给出了错误“ Microsoft JScript runtime error: Object required
”我已经尝试了所有可能的网络解决方案,但没有任何效果......