如何使用 JavaScript 从 GridView Cell 中分配和检索值？
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How to assign and retrieve value from the GridView Cell using JavaScript?
提问by thevan
I have Two Labels such as FixedTotal and TotalPercent, One GridView which has One Row such as
我有两个标签，例如 FixedTotal 和 TotalPercent，一个 GridView 有一行，例如
ReferenceID Percentage Amount
-------------- ------------- --------
1 5 1000
Here I want to change the "Percentage" Column value 5 with the TotalPercent label's text. and I want to display the "Amount" Column value 1000 in the FixedTotal label. I also want to check whether the Grid has row or not? How to do this? The Columns are BoundField Columns..
在这里，我想使用 TotalPercent 标签的文本更改“百分比”列值 5。我想在 FixedTotal 标签中显示“金额”列值 1000。我还想检查网格是否有行？这个怎么做？列是 BoundField 列..
回答by Muhammad Akhtar
Getting/Settingvalue to gridview cells, you need to know the Row Indexof Gridview, you can pass row indexwhen you call JS function from gridview
Getting/Settinggridview单元格的值，你需要知道Row IndexGridview的，pass row index当你从gridview调用JS函数时可以
<script language="javascript" type="text/javascript">
function update(rowIndexOfGridview) {
var ri = rowIndexOfGridview;
var grd = document.getElementById('<%= GridView1.ClientID %>');
CellValue = grd.rows[ri].cells[1].childNodes[0].value; // get
grd.rows[ri].cells[2].childNodes[0].value = CellValue; assign
...........
.............
}
回答by Anuradha Jayalath
<script language="javascript" type="text/javascript">
function Calculate()
<br/>
{
<br/>
var grid = document.getElementById("<%=GridID.ClientID%>");
<br/>
var sum = 0; <br/>
for (var i = 1; i < grid.rows.length; i++)<br/>
{ <br/>
var Cell = grid.rows[i].getElementsByTagName("input");
<br/>if (!Cell[4].value) {sum += 0; } else { sum += parseFloat(Cell[4].value);} }
<br/>
document.getElementById("<%=TextBox1.ClientID%>").value = sum;
}
<br/>
</script>
------------------------------------------------------------------------
<asp:TemplateField HeaderText="Current payment" >
<ItemTemplate>
<asp:TextBox ID="cridnvalue" runat="server" Width="70px" BorderStyle="None" onkeyup="CalculateTax();" ></asp:TextBox>
</ItemTemplate>
<ItemStyle Width="120px" />
</asp:TemplateField>
