Javascript 如何使用Javascript从Gridview中的文本框中获取文本值
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时间：2020-08-23 23:56:05 来源:igfitidea点击:
How to get the text value from textbox which is in Gridview using Javascript
提问by Developer
Hi all I have written the following script to get the value from the textboxwhich is in GridViewbut I am getting some value as NaNcan some one tell where I went wrong
大家好，我已经编写了以下脚本来获取其中的值textbox，GridView但是我得到了一些值，因为NaN有人可以告诉我哪里出错了
This is my sample script
这是我的示例脚本
var grid = document.getElementById("<%=grdInvoice.ClientID%>");
var inputs = grid.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "text") {
if (inputs[i].name.indexOf("txtAmount").value != "") {
alert("Not Null");
amnt = parseInt(inputs[i].name.indexOf("txtAmount").value);
alert(amnt.toString()); // Getting Nan here
//var v = document.getElementById('<%= lblTotal.ClientID %>').value;
}
}
}
My grid is as follows
我的网格如下
ddl Quantity desc Rate Amount
1 d 10 10
2 d 20 40
Like that some empty rows will also be there I need to sum the Amountand display
就像一些空行也会在那里我需要总结Amount和显示
My grid view
我的网格视图
<asp:GridView ID="grdInvoice" runat="server" AutoGenerateColumns="False" GridLines="None"
Width="650px" CellPadding="2" CellSpacing="1" ForeColor="#333333" CssClass="inv_grid_data"
OnSelectedIndexChanged="grdInvoice_SelectedIndexChanged" OnSelectedIndexChanging="grdInvoice_SelectedIndexChanging"
Style="font-family: verdana; font-size: 9px;">
<RowStyle BackColor="#f1f1f2" ForeColor="#333333" BorderColor="#333333" BorderStyle="Solid"
BorderWidth="1px" />
<HeaderStyle CssClass="inv_grid_hed" BackColor="#f2f2f2" ForeColor="black" Font-Names="Verdana,Arial,Helvetica,sans-serif"
Font-Size="9px" Height="15px" Font-Bold="false" />
<AlternatingRowStyle CssClass="tr2" BackColor="White" ForeColor="#284775" />
<Columns>
<asp:TemplateField HeaderText="Item Name" HeaderStyle-Width="140">
<ItemTemplate>
<asp:DropDownList ID="ddlItems" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddlItems_SelectedIndexChanged"
DataTextField="LineItemName" DataValueField="LineItemName" CssClass="txt_box_ssm_drop"
Width="100%" Font-Names="Verdana,Arial,Helvetica,sans-serif" Font-Size="12px">
</asp:DropDownList>
</ItemTemplate>
<HeaderStyle Width="180px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox ID="txtQuantity" CssClass="txt_box_ssm_big" runat="server" Width="100%"></asp:TextBox>
</ItemTemplate>
<HeaderStyle Width="100px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Description">
<ItemTemplate>
<asp:TextBox ID="txtDescription" CssClass="txt_box_ssm_big" runat="server" Width="100%"></asp:TextBox>
</ItemTemplate>
<%--<ItemStyle Height="11px" Width="100px" /> --%>
<HeaderStyle Width="260px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Rate">
<ItemTemplate>
<asp:TextBox ID="txtRate" ReadOnly="true" CssClass="txt_box_ssm_big" runat="server"
Width="100%"></asp:TextBox>
</ItemTemplate>
<HeaderStyle Width="100px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Amount">
<ItemTemplate>
<asp:TextBox ID="txtAmount" runat="server" CssClass="txt_box_ssm_big" Width="100%"></asp:TextBox>
<%--<asp:Label ID="lblamount" runat="server" Text='<%# Eval("Amount") %>'/>--%>
</ItemTemplate>
<HeaderStyle Width="100px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate>
<%--<asp:ImageButton ID="ImageButton2" runat="server" ImageUrl="~/images/icon_delete.gif" OnClick="RowDelete_Click" OnClientClick="msg('Can you get there from here?','This is a Title')"/>--%>
<asp:ImageButton ID="RowDelete" runat="server" ImageUrl="~/images/icon_delete.gif"
OnClick="RowDelete_Click" OnClientClick="return showConfirm()" Style="margin-left: 15px;" />
</ItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowSelectButton="true" ButtonType="image" SelectImageUrl="~/Invoiceimages/Copy-32(1).png"
SelectText="Copy" HeaderText="Copy" />
</Columns>
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<EditRowStyle BackColor="#999999" />
</asp:GridView>
My original script initially I will add AMount in the grid view based on user quantity after that I Would like to display the total amount in the grid to a label
我的原始脚本最初我将根据用户数量在网格视图中添加 AMount 之后我想将网格中的总量显示到标签
<script type="text/javascript">
function multiplication(txtQuantity, txtRate, txtAmount) {
var weight = document.getElementById(txtQuantity).value;
var rate = document.getElementById(txtRate).value;
document.getElementById(txtAmount).value = weight * rate;
var amnt = 0;
// var Grid_Table = document.getElementById('<%= grdInvoice.ClientID %>');
// for (var row = 1; row < Grid_Table.rows.length; row++) {
// var qty = 0;
// for (var col = 0; col < Grid_Table.rows[row].cells.length; col++) {
// var cellcollectin = Grid_Table.rows[row].cells[col];
// for (var j = 0; j < cellcollectin.childNodes.length; j++) {
// if (cellcollectin.childNodes[j].type == "text") {
// if (cellcollectin.childNodes[j].name.indexOf("txtAmount") > 1) {
// if (cellcollectin.childNodes[j].value != "") {
// qty = parseInt(cellcollectin.childNodes[j].value);
// amnt = amnt + qty;
// }
// }
// }
// }
// }
// }
var grid = document.getElementById("<%=grdInvoice.ClientID%>");
var inputs = grid.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "text") {
if (inputs[i].name.indexOf("txtAmount").value != "") {
alert("Not Null");
amnt = grid.rows[i].cells[1].childNodes[0].value;
//amnt = parseInt(inputs[i].name.indexOf("txtAmount").value);
alert(amnt.toString());
//var v = document.getElementById('<%= lblTotal.ClientID %>').value;
}
}
}
document.getElementById('<%= lblTotal.ClientID %>').innerHtml = amnt.toString();
}
</script>
回答by Developer
After all here is the solution
毕竟这里是解决方案
<script type="text/javascript">
function multiplication(txtQuantity, txtRate, txtAmount) {
var col1;
var totalcol1 = 0;
var weight = document.getElementById(txtQuantity).value;
var rate = document.getElementById(txtRate).value;
document.getElementById(txtAmount).value = weight * rate;
var grid = document.getElementById('<%=grdInvoice.ClientID %>');
for (i = 0; i < grid.rows.length; i++) {
col1 = grid.rows[i].cells[4];
//col2 = grid.rows[i].cells[1];
for (j = 0; j < col1.childNodes.length; j++) {
if (col1.childNodes[j].type == "text") {
if (!isNaN(col1.childNodes[j].value) && col1.childNodes[j].value != "") {
totalcol1 += parseInt(col1.childNodes[j].value)
}
}
}
}
document.getElementById('<%= lblTotal.ClientID %>').innerHTML = totalcol1.toFixed(2).toString();
}
</script>
回答by Coder
There is a problem in your code, Javascript's indexOf()either returns -1 or positive integer, valueis the property of input textbox and has nothing to do with indexOf().
你的代码有问题，JavascriptindexOf()要么返回 -1 要么返回正整数，value是输入文本框的属性，与indexOf().
Replace your code with this:
用这个替换你的代码：
var grid = document.getElementById("<%=grdInvoice.ClientID%>");
var inputs = grid.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "text") {
if (inputs[i].name == "txtAmount" || inputs[i].id == "txtAmount") {
amnt = parseInt(inputs[i].value);
alert(amnt.toString());
}
}
}
回答by Vishal Suthar
I think the method you are using is wrong. better to use something as below one:
我认为您使用的方法是错误的。最好使用以下内容：
var inputs = grid.getElementsByTagName("input");
var grid = document.getElementById('<%= grdInvoice.ClientID %>');
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "text") {
amnt = parseInt(grid.rows[i].cells[2].childNodes[0].value;);
alert(amnt.toString()); // Getting Nan here
//var v = document.getElementById('<%= lblTotal.ClientID %>').value;
}
}
回答by lakshmi
Text inside the gridview
网格视图中的文本
<asp:GridView ID ="grvAddItems" runat="server">
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox CssClass="field-text1" Width="70 px" ID="txtQuantity" runat="server" TextMode="Number" onblur="findcontrol()"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</asp:GridView>
Javascript code
Javascript代码
function findcontrol()
{
var textBoxQuantity = document.getElementsByClassName("field-text1");
for (var i = 0; i < textBoxQuantity.length; i++) {
findvalue(textBoxQuantity[i].id);
}
}
function findvalue()
{
var Quantity = document.getElementById(quantity).value;
if (Number(Quantity) > 0){
// your calculations here
}
回答by Foysal Ahmed
I think this will work easily to read Grid view data
我认为这很容易读取网格视图数据
function StatusValidation() {
var rowCount = <%=gvRoomStatus.Rows.Count%>; // set your grid view name
for (var i = 0; i < rowCount; i++) {
var checkBoxes = $("#ContentPlaceHolder1_gvRoomStatus_chkIsSavePermission_" +i).is(":checked");
if (checkBoxes == true) {
count++;
var ddlHKRoomStatus = $("#ContentPlaceHolder1_gvRoomStatus_ddlHKRoomStatus_" + i).val();
var fromDate = $("#ContentPlaceHolder1_gvRoomStatus_txtFromDate_" + i).val();
var fromTime = $("#ContentPlaceHolder1_gvRoomStatus_txtFromTime_" + i).val();
var toDate = $("#ContentPlaceHolder1_gvRoomStatus_txtToDate_" + i).val();
var toTime = $("#ContentPlaceHolder1_gvRoomStatus_txtToTime_" + i).val();
var reason = $("#ContentPlaceHolder1_gvRoomStatus_txtReason_" + i).val();
if (ddlHKRoomStatus == "3" || ddlHKRoomStatus == "4") {
if (fromDate == "") {
toastr.warning("Please provide From Date");
$("#ContentPlaceHolder1_gvRoomStatus_txtFromDate_" + i).focus();
return false;
}
else if (fromTime == "") {
toastr.warning("Please provide From Time");
$("#ContentPlaceHolder1_gvRoomStatus_txtFromTime_" + i).focus();
return false;
}
else if (toDate == "") {
toastr.warning("Please provide To Date");
$("#ContentPlaceHolder1_gvRoomStatus_txtToDate_" + i).focus();
return false;
}
else if (toTime == "") {
toastr.warning("Please provide To Time");
$("#ContentPlaceHolder1_gvRoomStatus_txtToTime_" + i).focus();
return false;
}
else if (reason == "") {
toastr.warning("Please provide a valid reason");
$("#ContentPlaceHolder1_gvRoomStatus_txtReason_" +i).focus();
return false;
}
}
}
}
<!-- begin snippet: js hide: false console: true babel: false -->