ASPxClientUploadControlValidationSettings.maxFileCount Property
Gets the maximum count of files that can be selected for uploading at once.
Declaration
maxFileCount: numberProperty Value
| Type | Description |
|---|---|
| number | The maximum count of files. |
Remarks
Use the maxFileCount property to get the maximum count of files that can be selected for uploading at once. To specify this property on the server side, use the UploadControlValidationSettings.MaxFileCount property.
Example
The following example illustrates how to use the ASPxClientUploadControl.ValidationErrorOccurred event to customize an error message for files that didn’t pass validation.
function onUploadControlValidationErrorOccured(s, e) {
e.showAlert = false;
var errorHtmlContentTemplate = "<div class=\"error-attention\">Attention!</div><br />" +
"{0} files are invalid and will not be uploaded.<br /><br /> {1}" +
"All files listed above have been removed from the selection.";
var preparedErrorHtmlContent = errorHtmlContentTemplate
.replace("{0}", e.invalidFiles.length)
.replace("{1}", getDetailsErrorInfoHtml(e));
popupControl.SetContentHtml(preparedErrorHtmlContent);
popupControl.Show();
}
function getDetailsErrorInfoHtml(e) {
var html = "";
html += getDetailsErrorInfoHtmlByErrorType(e, ASPxClientUploadControlValidationErrorTypeConsts.MaxFileCountExceeded,
"These files exceed the allowed file count (the maximum file count is {0}):<br /><ul>{1}</ul><br />",
e.validationSettings.maxFileCount);
html += getDetailsErrorInfoHtmlByErrorType(e, ASPxClientUploadControlValidationErrorTypeConsts.MaxFileSizeExceeded,
"These files exceed the allowed file size (the maximum file size is {0} bytes):<br /><ul>{1}</ul><br />",
e.validationSettings.maxFileSize, true);
html += getDetailsErrorInfoHtmlByErrorType(e, ASPxClientUploadControlValidationErrorTypeConsts.NotAllowedFileExtension,
"Extensions of these files are not allowed (valid extensions are - {0}):<br /><ul>{1}</ul><br />",
e.validationSettings.allowedFileExtensions.join(', '));
html += getDetailsErrorInfoHtmlByErrorType(e, ASPxClientUploadControlValidationErrorTypeConsts.FileNameContainInvalidCharacter,
"Names of this files contain invalid characters ({0}):<br /><ul>{1}</ul><br />",
e.validationSettings.invalidFileNameCharacters.join(","));
return html;
}
function getDetailsErrorInfoHtmlByErrorType(e, errorType, message, commonInfo, isFileSize) {
var filesInfo = getFilesInfoByErrorType(e.invalidFiles, errorType);
if (filesInfo.length == 0)
return "";
var filesHtml = "";
for (var i = 0, len = filesInfo.length; i < len; i++) {
var f = filesInfo[i];
var fileText = isFileSize ? f.fileName + " - " + f.fileSize + " bytes" : f.fileName;
filesHtml += "<li class=\"error-file\">" + fileText + "</li>";
}
return "<div class=\"error-detail\">" + message.replace("{0}", commonInfo).replace("{1}", filesHtml) + "</div>";
}
function getFilesInfoByErrorType(invalidFiles, errorType) {
var filesInfo = [];
for (var i = 0, len = invalidFiles.length; i < len; i++) {
var fileInfo = invalidFiles[i];
if (fileInfo.errorType == errorType)
filesInfo.push(fileInfo);
}
return filesInfo;
}
See Also