[英]How to set the default value of a dropdown in powerapps
I have a dropdown in powerapps and need to set the default value我在 powerapps 中有一个下拉菜单,需要设置默认值
My Items
property of my dropdown I have it linked to my data source which is an Azure table.我的下拉列表的我的
Items
属性将它链接到我的数据源,它是一个 Azure 表。
'[dbo].[ColorTable]'
One could see the contents simplified as the following人们可以看到内容简化如下
Table({ColorName:"red"; ID: "1"};{ColorName:"green"; ID: "2"}{ColorName:"blue"; ID: "3"})
although I have many more entries.虽然我有更多的条目。
In my details edit screen I have the ID value in my main datasource.在我的详细信息编辑屏幕中,我的主数据源中有 ID 值。 However I need to set the dropdown's default with this value, however the dropdown use the
ColorName
as it's value.但是我需要使用此值设置下拉列表的默认值,但是下拉列表使用
ColorName
作为它的值。
How do I set the dropdowns default ID
value since its Value is ColorName
and not ID
?如何设置下拉默认
ID
值,因为它的 Value 是ColorName
而不是ID
?
I have a workaround that works but in conjunction with saving the selected value back again it can conflict with the saving.我有一个可行的解决方法,但与再次保存所选值相结合,它可能会与保存发生冲突。
In the Default
property of the dropdown I add the following code在下拉列表的
Default
属性中,我添加以下代码
LookUp('[dbo].[ColorTable]';ID=ThisItem.fk_ColorID;ColorName)
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