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

Question

我的 PowerApps 功能有问题，我无法自行解决。 您可以在下面找到一个有效的代码（尽管我认为它没有得到很好的优化）。与主题一样，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，在桌子上应用过滤器，然后如果条件进入播放，就可以了。

主要部分是 if 条件，当用户在下拉菜单中选择条件时，条件按名称或等级对表格进行排序。在该条件下，有支持搜索引擎和排序升序/降序按钮的功能。 之后，我想添加对过滤器按钮的支持，并且按钮本身工作正常，但是 if 条件仅在按下最后一个按钮时执行（因此，例如，当我按下与 It 相关的按钮时，它将类别设置为“1”并且导航到下一个屏幕，但搜索/排序不起作用）。 我尝试用更多括号分隔条件，在 switch 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..."
    )
)

无论切换如何，我都想执行 if。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，我将尝试以下内容。

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，类似于您的建议。错误值和其他类别的代码相同。无论如何，感谢您的帮助。

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
            )
        );