我正在开发一个 ASP.NET Web 应用程序，在该应用程序中，我使用向导引导客户端完成大量步骤。
其中一个步骤包括即时计算一堆数字……数字计算正确，但是当我单击“下一步”然后再次返回时……某些数字没有保留。
这是计算函数
function CalculateFields() {
txtSellingPrice = document.getElementById('<%=txtSellingPrice.ClientID %>');
//I get all of the elements like this...
//...
var regexp = /[$,]/g;
//Empty value checks
SellingPrice = (SellingPrice == "" ? "$0" : SellingPrice);
BalanceSheet = (BalanceSheet == "" ? "$0" : BalanceSheet);
DownPayment = (DownPayment == "" ? "$0" : DownPayment);
susearn = (susearn == "" ? "$0" : susearn);
susrev = (susrev == "" ? "$0" : susrev);
balmult = (balmult == "" ? "$0" : balmult);
goodmult = (goodmult == "" ? "$0" : goodmult);
sellmult = (sellmult == "" ? "$0" : sellmult);
//Replace $ with String.Empty
SellingPrice = txtSellingPrice.value.replace(regexp, "");
BalanceSheet = txtBalanceSheet.value.replace(regexp, "");
DownPayment = txtDownPayment.value.replace(regexp, "");
susearn = txtSusEarn.value.replace(regexp, "");
susrev = txtSusRev.value.replace(regexp, "");
balmult = txtBalanceMult.value.replace(regexp, "");
goodmult = txtGoodwillMult.value.replace(regexp, "");
sellmult = txtSellingPriceMult.value.replace(regexp, "");
//Set the new values
txtGoodWill.value = "$" + (SellingPrice - BalanceSheet);
txtBalance.value = "$" + (SellingPrice - DownPayment);
txtSellingPriceMult.value = "$" + SellingPrice;
txtGoodwillMult.value = "$" + (SellingPrice - BalanceSheet);
txtBalanceMult.value = "$" + BalanceSheet;
if (chkTakeBack.checked == 1) {
txtVendorTakeBackPercentage.value = Math.round((SellingPrice - DownPayment) / SellingPrice * 100);
}
else {
txtVendorTakeBackPercentage.value = "0";
}
if (!(susearn == "") && !(susearn == "0") && !(susearn == "$0")) {
txtSusEarnPercentage.value = Math.round(susearn / susrev * 100);
txtBalanceMultPercentage.value = Math.round(balmult / susearn);
txtGoodwillMultPercentage.value = Math.round(goodmult / susearn);
txtSellingPriceMultPercentage.value = Math.round(sellmult / susearn);
}
else {
txtSusEarnPercentage.value = "0";
txtBalanceMultPercentage.value = "0";
txtGoodwillMultPercentage.value = "0";
txtSellingPriceMultPercentage.value = "0";
}
}
所有这些都正确计算并在回发中保留其价值
txtGoodWill.value = "$" + (SellingPrice - BalanceSheet);
txtBalance.value = "$" + (SellingPrice - DownPayment);
txtSellingPriceMult.value = "$" + SellingPrice;
txtGoodwillMult.value = "$" + (SellingPrice - BalanceSheet);
txtBalanceMult.value = "$" + BalanceSheet;
然而，这些并没有在回发中保留它们的价值
if (chkTakeBack.checked == 1) {
txtVendorTakeBackPercentage.value = Math.round((SellingPrice - DownPayment) / SellingPrice * 100);
}
else {
txtVendorTakeBackPercentage.value = "0";
}
if (!(susearn == "") && !(susearn == "0") && !(susearn == "$0")) {
txtSusEarnPercentage.value = Math.round(susearn / susrev * 100);
txtBalanceMultPercentage.value = Math.round(balmult / susearn);
txtGoodwillMultPercentage.value = Math.round(goodmult / susearn);
txtSellingPriceMultPercentage.value = Math.round(sellmult / susearn);
}
else {
txtSusEarnPercentage.value = "0";
txtBalanceMultPercentage.value = "0";
txtGoodwillMultPercentage.value = "0";
txtSellingPriceMultPercentage.value = "0";
}
txtVendorTakeBackPercentage总是返回空白，其他三个总是作为0
我通过使用onkeyup表单字段中的事件来触发这些功能。
If Not Page.IsPostBack Then
txtSellingPrice.Attributes.Add("onkeyup", "CalculateFields()")
txtBalanceSheet.Attributes.Add("onkeyup", "CalculateFields()")
txtDownPayment.Attributes.Add("onkeyup", "CalculateFields()")
txtSusRev.Attributes.Add("onkeyup", "CalculateFields()")
txtSusEarn.Attributes.Add("onkeyup", "CalculateFields()")
End If
任何想法/帮助/方向将不胜感激。
编辑：
我的页面加载事件看起来像这样......
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
'Prepair page for advanced validation'
Dim cs As ClientScriptManager = Page.ClientScript
If Not cs.IsOnSubmitStatementRegistered(Me.[GetType](), "PrepareValidationSummary") Then _
cs.RegisterOnSubmitStatement(Me.[GetType](), "PrepareValidationSummary", "CheckForm()")
If Not Page.IsPostBack Then
'Part of the client side math'
txtSellingPrice.Attributes.Add("onkeyup", "CalculateFields()")
txtBalanceSheet.Attributes.Add("onkeyup", "CalculateFields()")
txtDownPayment.Attributes.Add("onkeyup", "CalculateFields()")
txtSusRev.Attributes.Add("onkeyup", "CalculateFields()")
txtSusEarn.Attributes.Add("onkeyup", "CalculateFields()")
我实际的 aspx 页面有超过 2400 行，所以我不会发布整个内容。这是百分比字段未保留其值的部分。
<tr>
<td colspan="5" class="AlignRight">
Average Annual Sustainable Earnings (ebitda) estimated
<ew:NumericBox ID="txtSusEarnPercentage" runat="server" Enabled="False" MaxLength="3"
Width="20px" TruncateLeadingZeros="True" />
%
</td>
<td class="AlignRight">
<ew:NumericBox ID="txtSusEarn" runat="server" AutoFormatCurrency="True" DecimalPlaces="2"
MaxLength="9" Width="92px" />
</td>
<td>
<asp:Image ID="HelpEBITDA0" runat="server" Height="16px" ImageUrl="~/Images/Icons/help.gif" />
</td>
</tr>
<tr>
<td colspan="5" class="AlignRight">
</td>
<td class="AlignRight">
</td>
<td>
</td>
</tr>
<tr>
<td colspan="5" class="AlignRight">
Balance Sheet / Net Asset Value as earnings multiple
<ew:NumericBox ID="txtBalanceMultPercentage" runat="server" Enabled="False" MaxLength="3"
Width="20px" />
</td>
<td class="AlignRight">
<ew:NumericBox ID="txtBalanceMult" runat="server" AutoFormatCurrency="True" DecimalPlaces="2"
MaxLength="9" Width="92px" Enabled="False" />
</td>
<td>
</td>
</tr>
<tr>
<td colspan="5" class="AlignRight">
Goodwill Value as earnings multiple
<ew:NumericBox ID="txtGoodwillMultPercentage" runat="server" Enabled="False" MaxLength="3"
Width="20px" />
</td>
<td class="AlignRight">
<ew:NumericBox ID="txtGoodwillMult" runat="server" AutoFormatCurrency="True" DecimalPlaces="2"
MaxLength="9" Width="92px" Enabled="False" />
</td>
<td>
</td>
</tr>
<tr>
<td colspan="5" class="AlignRight">
Proposed Selling Price as earnings multiple
<ew:NumericBox ID="txtSellingPriceMultPercentage" runat="server" Enabled="False"
MaxLength="3" Width="20px" />
</td>
<td class="AlignRight">
<ew:NumericBox ID="txtSellingPriceMult" runat="server" AutoFormatCurrency="True"
DecimalPlaces="2" MaxLength="9" Width="92px" Enabled="False" />
</td>
<td>
</td>
</tr>
这是我填写时的表格
before.png
这是我点击“下一个”然后点击“上一个”之后的表格
after.png
编辑
图片早就没了，抱歉。