How to implement multiple parameters in el-dropdown in ElementUI

Recently, due to the increase in buttons in the business, there are too many buttons in the page layout, the page is not beautiful enough, and the user experience is not good. So I thought of using el-dropdown to make a drop-down button (integrating multiple buttons together and implementing drop-down)

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However, the handleCommand method in the ElementUi official documentation only allows one parameter to be passed in, which is used to trigger which option you selected. In practice, we also need to pass in an object with the current row number (if you use a table to display data like me), and then use some fields of this object to pass it to the background for some add, delete, modify and query operations.

The example of el-dropdown in the official document of ElementUi is as follows:
el-dropdown official documentation

<el-dropdown @command="handleCommand">
  <span class="el-dropdown-link">
    Drop-down menu<i class="el-icon-arrow-down el-icon--right"></i>
  </span>
  <el-dropdown-menu slot="dropdown">
    <el-dropdown-item command="a">Golden Cake</el-dropdown-item>
    <el-dropdown-item command="b">Lion Head</el-dropdown-item>
    <el-dropdown-item command="c">Snail rice noodle</el-dropdown-item>
    <el-dropdown-item command="d" disabled>Double Skin Milk</el-dropdown-item>
    <el-dropdown-item command="e" divided>Oyster Omelet</el-dropdown-item>
  </el-dropdown-menu>
</el-dropdown>

<style>
  .el-dropdown-link {
    cursor: pointer;
    color: #409EFF;
  }
  .el-icon-arrow-down {
    font-size: 12px;
  }
</style>

<script>
  export default {
    methods: {
      handleCommand(command) {
        this.$message('click on item ' + command);
      }
    }
  }
</script>

We must repackage the command parameter into an object before executing the handleCommand method so that it contains the data we want for later calls.

The code is as follows:

<el-table-column label="Operation 1">
    <template slot-scope="scope">
        <el-dropdown split-button type="primary" @command="handleCommand">
            Other operations <el-dropdown-menu slot="dropdown" >
                <el-dropdown-item :command="beforeHandleCommand(scope.$index, scope.row,'a')">Abandoned</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope.$index, scope.row,'b')">Upload original</el-dropdown-item>
                <el-dropdown-item :command="beforeHandleCommand(scope.$index, scope.row,'c')">Original arrangement</el-dropdown-item>
                <el-dropdown-item disabled :command="beforeHandleCommand(scope.$index, scope.row,'d')">Freeze</el-dropdown-item>
                <el-dropdown-item disabled :command="beforeHandleCommand(scope.$index, scope.row,'e')">Unfreeze</el-dropdown-item>
            </el-dropdown-menu>
        </el-dropdown>
    </template>
</el-table-column>

Because we are writing it in a table, we need a slot and make specific modifications based on the actual situation. Bind a method to the command attribute of the tag, this method can pass in the parameters we want, and then use this method to encapsulate it into an object, and then pass this object into the handleCommand method.

<script>
export default {
    methods: {
        handleAbandon(index, row) {
           //todo
        },
        handleUpload (index, row) {
            //todo
        },
        handleSettle(index, row){
           //todo   
        },
        beforeHandleCommand(index, row, command){
            return {
                'index': index,
                'row': row,
                'command':command
            }
        },
        handleCommand(command) {
            switch (command.command) {
                case "a"://abandon this.handleAbandon(command.index,command.row);
                    break;
                case "b"://Upload the original this.handleUpload (command.index, command.row);
                    break;
                case "c"://Original arrangement this.handleSettle(command.index,command.row);
                    break;
            }
        }
    },
}
</script>

This is the end of this article about how to implement multiple parameters of el-dropdown in ElementUI. For more information about how to pass multiple parameters of el-dropdown in ElementUI, please search previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope you will support 123WORDPRESS.COM in the future!

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