On the conditional rendering of vue - Codes Helper - Programming Question Answer

On the conditional rendering of vue

use element-ui to make two tables and use conditional rendering to control switching. It is found that the display is not normal using v-if, but v-show can display and switch normally. The structure of
table is as follows:

 <!--  -->
        <el-table   :data="tableDataHistory"
                    v-show="enabledBill"
                    v-loading="loading"
                    v-resize="{height:41}"
                    element-loading-text="..."
                    highlight-current-row
                    @selection-change=" handle_selection_change">
            <el-table-column type="selection">
            </el-table-column>
            <el-table-column prop="date" label="">
            </el-table-column>
            <el-table-column prop="date" label="">
            </el-table-column>
        </el-table>
        <!--  -->
        <el-table   :data="tableDataEnabled"
                    v-show="!enabledBill"
                    v-loading="loading"
                    v-resize="{height:41}"
                    element-loading-text="..."
                    highlight-current-row
                    @selection-change="handle_selection_change">
            <el-table-column type="selection">
            </el-table-column>
            <el-table-column prop="date" label="">
            </el-table-column>
            <el-table-column prop="date" label="">
            </el-table-column>
        </el-table>

using v-show, the table can be displayed and switched normally:

v-showv-if:

Why is this?

Jun.22,2022

add a unique key value to each v-if try

my display is normal https://jsfiddle.net/f7qu14ay/1/

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