How to manually trigger the onBlur event of a cell in Avue-crud row editing mode?

Detailed explanation of manually triggering cell onBlur event in Avue-crud row editing mode

This article discusses how to manually trigger onBlur event of a cell in row editing mode of the Avue-crud component. Using this.$refs.crud.blur() directly is invalid because Avue-crud does not directly expose this API. The solution requires a deep understanding of Avue-crud's row editing mechanism and its underlying table components.

Question: How to manually trigger onBlur event for a specific cell in Avue-crud row editing?

Solution: Avue-crud is usually based on table components of other UI libraries (such as Element UI Table). We need to trigger the event by accessing the DOM element of the underlying table component.

step:

1. Positioning Cell Elements: This requires checking the DOM structure of Avue-crud. Use the browser developer tool to find the DOM element of the target cell. The form of the selector depends on the Avue-crud version and configuration, but will usually contain class names such as el-table__cell (if based on the Element UI). You need to find the appropriate properties to uniquely identify the target cell, such as row index and column keys. A possible example selector (based on Element UI):

    const cellElement = this.$refs.crud.$el.querySelector('.el-table__cell[data-index="yourRowIndex"][data-column-key="yourColumnKey"]');

   Be sure to replace "yourRowIndex" and "yourColumnKey" with the correct row index and column keys according to the actual DOM structure of your Avue-crud instance.

2. Trigger the blur event: Once the cell element is found, use the dispatchEvent method to trigger blur event:

    if (cellElement) {
     cellElement.dispatchEvent(new Event('blur'));
   }

Important tips:

• The above code is based on the Element UI Table. If Avue-crud uses table components of other UI libraries (such as Vuetify or Ant Design), the selector needs to be adjusted accordingly. Please double-check the DOM structure of your Avue-crud component.
• this.$refs.crud may need to be adjusted. The ref names of Avue-crud may be different, please check your code to determine the correct ref names. You may need to check the DOM structure of the Avue-crud component in the browser developer tool to find the correct ref.
• Make sure that the event is triggered only if cellElement exists to avoid errors.

Through the above steps, you can manually trigger the onBlur event of a cell in Avue-crud row editing mode, thereby achieving more granular editing control. Remember, it is crucial to adjust the selector and ref names according to your specific Avue-crud version and configuration.

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