MS PowerApps，如果在powerapps中切换之后，那么它是独立执行的（切换之后，不在里面）

Question

我遇到 PowerApps 功能问题，我自己无法解决。您可以在下面找到有效的代码（尽管我认为它没有得到很好的优化）。在主题中，if 条件在 switch 内部执行，作为它的参数之一，而不是在 switch 之后执行。最终结果应该是：用户按下按钮，在 table 上应用过滤器，然后如果条件开始播放，就完成了它的工作。

主要部分是 if 条件，当用户在下拉菜单中选择条件时，条件按名称或等级排序 table。在那个条件下，有支持搜索引擎和排序ascending/descending按钮的功能。之后我想添加对过滤器按钮的支持，按钮本身工作正常，但 if 条件仅在按下最后一个按钮时执行（所以当我按下它相关的按钮时，它将类别设置为“1”并且导航到下一个屏幕，但 searching/sorting 不起作用）。我尝试用更多的括号分隔条件，在 switch 的末尾添加“;;”，但它没有解决问题（另外破坏了应用程序）。

Switch(
    category;
    1;
    Filter(
        Table1_2;
        '4. Area of training' = "IT-related"
    );
    //here is a bunch of filters for categories from 2 to 4
    5; //no filter as it should display table without any filter
If( //the problematic if, that is executed only when category is "5"
        dropdown_sort.Selected.Value = "Name of the training"; //check what the value of dropdown is, and the execute positive or negative case
        SortByColumns(
            Search(
                Table1_2;
                search_engine.Text; //takes text input and searches inside column below
                "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"
            );
            "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"; //sorting on this column
            If( //to change ascendin/descending on button press
                sort;
                Ascending;
                Descending
            )
        );
        //here is second part of if, that is basically identical to above (it sorts different column), and executes case when selected value of dropdown is different that "Name..."
    )
)

我想不管开关如何执行。此外，如果有更好的方法，请写下您的建议。谢谢。

Answer 1

这可能不是最终答案，但根据我阅读的内容，我会尝试以下内容。

if( category=1;
    Filter(
        Table1_2;
        '4. Area of training' = "IT-related"
    );;If( //the problematic if, that is executed only when category is "5"
        dropdown_sort.Selected.Value = "Name of the training"; //check what the value of dropdown is, and the execute positive or negative case
        SortByColumns(
            Search(
                Table1_2;
                search_engine.Text; //takes text input and searches inside column below
                "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"
            );
            "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"; //sorting on this column
            If( //to change ascendin/descending on button press
                sort;
                Ascending;
                Descending
            )
        );
        //here is second part of if, that is basically identical to above (it sorts different column), and executes case when selected value of dropdown is different that "Name..."
    )
    category=2;
    Filter(
        Table1_2;
        '4. Area of training' = "IT-related"
    );;If( //the problematic if, that is executed only when category is "5"
        dropdown_sort.Selected.Value = "Name of the training"; //check what the value of dropdown is, and the execute positive or negative case
        SortByColumns(
            Search(
                Table1_2;
                search_engine.Text; //takes text input and searches inside column below
                "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"
            );
            "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"; //sorting on this column
            If( //to change ascendin/descending on button press
                sort;
                Ascending;
                Descending
            )
        );
        //here is second part of if, that is basically identical to above (it sorts different column), and executes case when selected value of dropdown is different that "Name..."
    )
    //here is a bunch of filters for categories from 2 to 4
    category=5;  

)

Answer 2

与此同时，我设法自己解决了这个问题，与您的建议类似。错误值和其他类别的代码相同。无论如何，谢谢你的帮助。

Switch(
    category;
    1;
    If(
        dropdown_sort.Selected.Value = "Name of the training";
        SortByColumns(
            Search(
                Filter(
                    Table1_2;
                    '4. Area of training' = "IT-related"
                );
                search_engine.Text;
                "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training"
            );
            "3_x002e__x0020_Name_x0020_of_x0020_the_x0020_training";
            If(
                sort;
                Ascending;
                Descending
            )
        );

MS PowerApps，如果在powerapps中切换之后，那么它是独立执行的（切换之后，不在里面）

MS PowerApps, If after Switch in powerapps, so it's executed independently (after switch, not inside)

function

powerapps

multiple-conditions