如何获取列表值的总和以及取消选择值后应在本机中减去 [英] How to get sum of list value and after unselect value shoud substract in react native

问题描述

在此屏幕中，有两个选项卡:1.INVOICE SPECIFIC和2.AD-HOC. 现在，在1.Invoice SPECIFIC中，我使用复选框映射数组(数组上方")值，其中有一些"data.TransactionAmount"，我必须计算所有值的总和并发送到下一个屏幕， 但是，如果我取消选中任何列表金额应减去.例如，有3个值-1050，1050,150 = 3150，如果我取消选中单个值，则应为1050 + 1050 = 2100. 如果我取消单个列表，则所有列表都将变为未选中状态. 2.临时，在这里我可以输入任何数字并发送按钮按下，但是值没有更新，1的制表符正在运行. 请帮忙，谢谢， 下面的链接是我正在执行的操作.

Here in this screen there are two tabs 1.INVOICE SPECIFIC and 2.AD-HOC . Now In 1.Invoice SPECIFIC I am maping array ("above array) value with checkbox ,there are some amout "data.TransactionAmount" I have to calculate the sum of all and send to next screen, but if I uncheck any of the list amount should minus .Like there are 3 values - 1050 ,1050,150 =3150 and if I unchecked single value then it should be 1050+1050=2100. If i am uncheking single list all list is getting unchecked . 2. Ad Hoc , here I can enter any digint and send in button press , but value is not updating ,1 tab value is going . Please help , Thanks , Below link is refrence what i am implementing .

谢谢

推荐答案

我已根据您的要求构建了示例测试应用程序. 它在此存储库中: https://github.com/danZheng1993/sample_for_Abhigyan 请检查

I have built sample test application for your requirements. And it's on this repository: https://github.com/danZheng1993/sample_for_Abhigyan Please check it

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