我的模块中有两个下拉列表.
在一个下拉列表中,我已经硬编码了所有运算符 <,>,<=,>=,==
在第二个下拉列表中,我有像员工一样的硬编码员工 1000,2000,3000,4000....50000
现在,如果我<从一个列表和2000第二个列表中选择并单击"提交"按钮,我应该获得薪水低于2000的员工列表.
我想在asp.net mvc3中这样做
我怎样才能完成这项任务?我需要为此编写存储过程吗?
我创建了下拉列表,如:
viewModel.OperatorsList = new[]
{
new SelectListItem { Value = "<", Text = "<" },
new SelectListItem { Value = ">", Text = ">" },
new SelectListItem { Value = "<=", Text = "<=" },
new SelectListItem { Value = ">=", Text = ">=" },
new SelectListItem { Value = "==", Text = "==" }
};
viewModel.SalaryList = new[]
{
new SelectListItem { Value = "1000", Text …Run Code Online (Sandbox Code Playgroud) 我正在尝试创建一个辅助函数(对于一个类),它接受2个对象并比较两个类的属性
这些属性永远只能简单的类型,如string,int和bool
用法
Compare(widget1,widget2,x => x.Name)
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到目前为止我有什么
private void CompareValue<T>(Order target, Order source, Func<Order, T> selector)
{
if(target.selector != source.selector)
{
// do some stuff here
}
}
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显然上面的代码不起作用
我正在使用mathias bynen的占位符代码,如果我像这样做一个简单的自定义绑定,我想和淘汰一起使用它:
ko.bindingHandlers.placeholder = {
init: function (element) {
$(element).placeholder();
}
};
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和HTML
<input placeholder = "Line 1" data-bind="placeholder: {}, value: addressLine1">
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它有效,但我想将它们"合并"到一个自定义绑定中,以便像使用它一样
<input placeholder = "First Name" data-bind="placeholderValue: firstName">
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所以我尝试了这段代码:
ko.bindingHandlers.placeholderValue = {
init: function (element, valueAccessor) {
$(element).placeholder();
ko.bindingHandlers.value.init(element, valueAccessor);
},
update: function (element, valueAccessor) {
ko.bindingHandlers.value.update(element, valueAccessor);
}
};
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但它引起了我的兴趣
Uncaught TypeError: undefined is not a function
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我还没有真正掌握ko
我正在尝试ASP.NET 4.5 with c#使用以下代码写入文本文件:
using (System.IO.StreamWriter file = new System.IO.StreamWriter(@"./Experiment/main.txt", true))
{
file.WriteLine(DateTime.UtcNow.ToString() + " test");
}
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我得到了这个例外:
"Could not find a part of the path 'C:\Windows\SysWOW64\inetsrv\Experiment\main.txt'."
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该文件夹Experiment是我的Web应用程序的文件夹.
我已经按预期获得了模态,但我无法使背景变暗。
我也尝试过,backdropColor = {'green'} backdropOpacity = {1}但背景仍然存在。我需要这方面的帮助。下面是我的代码:
import Modal from "react-native-modal";
<View
style={styles.MainContainer}>
<Modal
backdropColor={'green'}
backdropOpacity= {1}
animationType={"slide"}
visible={this.state.ModalVisibleStatus}
onRequestClose={ ()=>{ this.ShowModalFunction(!this.state.ModalVisibleStatus)}}>
<View style={{ flex:1, justifyContent: 'center', alignItems: 'center' }}>
<View style={styles.ModalInsideView}>
<Text
style={styles.TextStyle}>
Enter the Number of Tickets to be Printed.
</Text>
<NumberSpinner
packageCount={this.state.tickets} min={0} max={20}
onChange={this.ticketsCount}
/>
<Button
title="Print Tickets"
onPress={() => { this.ShowModalFunction(!this.state.ModalVisibleStatus)}}/>
</View>
</View>
</Modal>
Run Code Online (Sandbox Code Playgroud) 我有一个时间序列数据。但是数据不连续。(2005-03-02 02:08:00丢失)。
我需要一个新的C列C(i)=A(i)+B(i)+average,其中我的平均值是B直到不连续为止的平均值(02:08:00)。
average=Data.loc['2005-03-02 02:05:30':'2005-03-02 02:07:30',['B']].mean(axis=0)
After discontinuity we have to again recalculate average till next discontinuity
average=Data.loc['2005-03-02 02:08:30':'2005-03-02 02:11:00',['B']].mean(axis=0)
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输入项
Date,A,B
2005-03-02 02:05:30,1,3
2005-03-02 02:06:00,2,4
2005-03-02 02:06:30,3,5
2005-03-02 02:07:00,4,6
2005-03-02 02:07:30,5,7
2005-03-02 02:08:30,7,9
2005-03-02 02:09:00,7,9
2005-03-02 02:09:30,7,9
2005-03-02 02:10:00,8,12
2005-03-02 02:10:30,9,13
2005-03-02 02:11:00,10,14
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输出量
Date,A,B,C
2005-03-02 02:05:30,1,3,9
2005-03-02 02:06:00,2,4,11
2005-03-02 02:06:30,3,5,13
2005-03-02 02:07:00,4,6,15
2005-03-02 02:07:30,5,7,17
2005-03-02 02:08:30,7,9,28
2005-03-02 02:09:00,7,9,28
2005-03-02 02:09:30,7,9,28
2005-03-02 02:10:00,8,12,32
2005-03-02 02:10:30,9,13,34
2005-03-02 02:11:00,10,14,36
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如何找出索引中的不连续性?
我如何使用熊猫来做整个事情?
我想在一个闪亮的应用程序中包含一个图像.我想:"如果它是类型1情节"这个图像",如果它是0型情节"这个其他图像".我知道我必须将jpg文件放入app.R所在的文件夹然后调用它但是我不知道怎么做.
这是我到目前为止使用的代码(它可以工作),我只需要在渲染中包含图像.
library(shiny)
# Define UI for application that draws a histogram
ui <- fluidPage(
# Application title
titlePanel("Myapp"),
#Inputs
dateInput(inputId = "dob", label="Birth"),
dateInput(inputId = "ad", label="Date"),
actionButton("Submit", icon("fas fa-magic"), label="Submit"),
#Outputs
textOutput(outputId = "textR"),
imageOutput(outputId = "imageR1"),
imageOutput(outputId="imageR2")
)
# Define server logic required to draw a histogram
server <- function(input, output) {
#my output should be named textR and imageR1, imageR2
observeEvent(input$Submit,
output$textR<-renderText({
v1<-as.numeric(as.Date(input$ad,format="%Y/%m/%d") - as.Date(input$dob, format="%Y/%m/%d"))/30.5
value_v1<-ifelse(v1>48, "type1", "type2")
print(value_v1)
}))
}
# Run the application …Run Code Online (Sandbox Code Playgroud) 我可以使用客户端脚本'javascript'获取客户端屏幕分辨率,
但我不想这样做.
我也试过Request.Browser.ScreenPixelsWidth,但它总是返回固定宽度680.
任何的想法?
我有两个GroupBoxes(groupBox1和groupBox2),每个都包含一组RadioButtons.
问题是在groupBox1中,运行项目时检查了默认值RadioButton(RadioButton组中的第1个),同时groupBox2没有默认选中RadioButton,
我想知道为什么是这样以及如何RadioButton为groupBox2 设置默认选项,并取消选择RadioButtongroupBox1 的默认值.
PS.当我运行项目时,groupBox1 Checked中第一个的属性RadioButton设置为'False'.
namespace RadioButtonsTest
{
partial class RadioButtonsTestForm
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose(); …Run Code Online (Sandbox Code Playgroud) 我尝试运行以下命令:
RUN if [ "$someargs" = "AAA" ]; then COPY from/ /usr/local/; fi
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我收到这个错误:This command returned a non-zero code: 127
c# ×3
asp.net ×2
background ×1
command ×1
compare ×1
controller ×1
docker ×1
dockerfile ×1
groupbox ×1
html-select ×1
knockout.js ×1
modal-dialog ×1
operators ×1
pandas ×1
python ×1
r ×1
radio-button ×1
react-native ×1
shiny ×1
shiny-server ×1
streamwriter ×1