验证上传文件的大小

用户名

我想检查文件大小，即如果文件大小超出，它将提示UploadSizeError消息。该方法是CheckValidate（）。

 var dialogButtons = [
      {
        text: "Upload",
        id: "tpApplicationFormDialog_btnSave",
        disabled: "disabled",
        class: "requiredAtt1",
        click: savetpApplicationFormDialog
      },

的HTML

<button type="button" id="tpApplicationFormDialog_btnSave" class="requiredAtt1 ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only" role="button" aria-disabled="false"><span class="ui-button-text">Upload</span></button>
<span class="ui-button-text">Upload</span>

方法

 function CheckValidate() {
        var o = getOptions();
        var f = this.files

        var ret = false;
        if (f.size> 1 || f.fileSize > 1)
        {
            ret = true;
        }
        return ret;
        }

function savetpApplicationFormDialog() {
      if (hasChanges()) {
          commonDialogs.showConfirm(ProjectMessages.ConfirmUpload, function () {
              if(CheckValidate()) {
                  commonDialogs.showProgress(ProjectMessages.UploadSizeError);
              }
                  try {
            commonDialogs.showProgress(ProjectMessages.ProgressUpload);
            var o = getOptions();
            var form = $(o.form);
            form.ajaxSubmit(handleResponse);
          } catch (e) {
            commonDialogs.showError();
          }
        });
      }
    };

车丹

试试这个

function CheckValidate() {
        var o = getOptions();
        //var f = this.files
         var f=  $("#idoffileinput").get(0).files[0]['size'] //will give file size in bytes
        var ret = false;
        var maxSize = xxx ;//max size in bytes
        if (f> maxSize )
        {
            ret = true;
        }
        return ret;
        }

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