Gets or sets an array of file extensions that are allowed for uploading.

Gets or sets whether the column data can be filtered. The default value is true.

Gets or sets the name of the data field from the column's data source where the binary attachment data is stored.

Gets or sets a string, representing a comma-separated enumeration of DataFields from the data source, that uniquely identify an attachment from the column's data source

Gets or sets the CssClass of the button

Gets or sets a value indicating the type of the download button that will be rendered. The type should be one of the specified by the GridButtonColumnType enumeration.

A string, specifying the ID of the datasource control, which will be used to retrieve binary data of the attachment.

Gets or sets a value from the specified datasource field. This value will then be displayed in the GridAttachmentColumn.

Gets or sets the string that specifies the display format for the caption in each button.

Gets or sets the file name of the attachment.

Gets or sets the name of the field bound to the file name of the attachment.

Gets or sets the format string applied to the value bound to the FileNameTextField property

Gets or sets a value indicating the URL for the image that will be used in a Image button. ButtonType should be set to ImageButton.

Gets or sets the maximum allowed size (in bytes) of the uploaded attachment.

Gets or sets a value indicating the text that will be shown for a button.