Asp.net fileupload filter file type

Inherited from WebControl. Gets the browser-specific adapter for the control. Inherited from Control. Gets or sets a value that specifies whether multiple files can be selected for upload. Gets or sets the background color of the Web server control.

Gets the control that contains this control's data binding. Gets or sets the border color of the Web control. Gets or sets the border style of the Web server control. Gets or sets the border width of the Web server control. Gets a value that indicates whether the server control's child controls have been created.

Gets the style of the Web server control. Gets a value indicating whether a control is being used on a design surface. Gets or sets a value indicating whether the Web server control is enabled. Gets or sets a value indicating whether themes apply to this control.

Gets a list of event handler delegates for the control. This property is read-only. Gets the font properties associated with the Web server control. Gets or sets the foreground color typically the color of the text of the Web server control.

Gets a value indicating whether the control has attributes set. Gets or sets the height of the Web server control. Gets or sets the programmatic identifier assigned to the server control. Gets the character used to separate control identifiers.

Gets a value indicating whether controls contained within this control have control state. Gets a value indicating whether the control is enabled. Gets a value that indicates whether the server control is saving changes to its view state. Gets a value indicating whether view state is enabled for this control. Gets a reference to the server control's parent control in the page control hierarchy. Gets a value that specifies the ASP.

Gets or sets the skin to apply to the control. Gets or sets the tab index of the Web server control. Gets the name of the control tag. Gets or sets a reference to the template that contains this control. Gets or sets the text displayed when the mouse pointer hovers over the Web server control. Gets the unique, hierarchically qualified identifier for the server control. Gets or sets the view-state mode of this control.

Gets or sets a value that indicates whether a server control is rendered as UI on the page. Gets or sets the width of the Web server control. AddedControl Control, Int AddParsedSubObject Object. ApplyStyle Style. ApplyStyleSheetSkin Page. Applies the style properties defined in the page style sheet to the control. Begins design-time tracing of rendering data. BuildProfileTree String, Boolean. Deletes the control-state information for the server control's child controls.

Deletes the view-state information for all the server control's child controls. CopyBaseAttributes WebControl. Binds a data source to the invoked server control and all its child controls. DataBind Boolean. Binds a data source to the server control's child controls. Enables a server control to perform final clean up before it is released from memory. Ends design-time tracing of rendering data. Creates an identifier for controls that do not have an identifier assigned.

Equals Object. Determines whether the specified object is equal to the current object. Inherited from Object. FindControl String. FindControl String, Int Sets input focus to a control. Gets design-time data for a control. Serves as the default hash function. GetRouteUrl Object. Gets the URL that corresponds to a set of route parameters. GetRouteUrl String, Object. Gets the URL that corresponds to a set of route parameters and a route name.

Determines if the server control contains any child controls. Returns a value indicating whether events are registered for the control or any child controls. Determines if the server control holds only literal content.

LoadControlState Object. LoadViewState Object. MapPathSecure String. Retrieves the physical path that a virtual path, either absolute or relative, maps to. MergeStyle Style. OnDataBinding EventArgs. OnInit EventArgs. OnLoad EventArgs. OnPreRender EventArgs. OnUnload EventArgs. OpenFile String. Assigns any sources of the event and its information to the control's parent. RemovedControl Control.

Render HtmlTextWriter. RenderChildren HtmlTextWriter. RenderContents HtmlTextWriter. RenderControl HtmlTextWriter. Gets the control adapter responsible for rendering the specified control.

ResolveClientUrl String. Gets a URL that can be used by the browser. ResolveUrl String. Converts a URL into one that is usable on the requesting client. SaveAs String. Saves the contents of an uploaded file to a specified path on the Web server. Sets design-time data for a control. SetTraceData Object, Object.

Returns a string that represents the current object. Occurs when the server control binds to a data source. This property determines whether the user has selected any file or not.

It has only been selected by the user. The browse button generated by the FileUpload control does not actually upload the file. This has to be done by writing a piece of code that instructs the FileUpload control to save a copy of the file in a path on the server. When this piece of code is triggered, the FileUpload control simply sends the file over HTTP S protocol to the server and stores it at the specified path.

The ASP. Net FileUpload control comes with certain pre-defined properties. These properties are converted to attributes in the native HTML code.

They help define additional behavior for the FileUpload control. AllowMultiple: This property gets or sets a value that permits or restricts the user to select multiple files simultaneously. The default value is false, which means the user is not allowed to select multiple files by default.

BackColor, ForeColor: This property gets or sets the background and the foreground color of the control. Enabled: This property gets or sets the value indicating whether the control is enabled or disabled.

The default value is true. Font: This property gets or sets the font of the text to be displayed in the control.

There are plenty of styles and options such as bold, italics, underline, strikeout, etc. Height, Width: These properties get or set the height and width of the control in the number of pixels. ID: This property gets or sets the unique identifier attribute to the control. ToolTip: This property gets or sets the tooltip value to be displayed when the mouse pointer is hovered over the control. Visible: This property determines whether the control will be displayed on the UI or hidden.

The default is true. Step 1: Create a new ASP. Net WebApplication project. FileName From the path of the system. If file. If all conditions are satisfied without any warning messages, then the successful message will come. If any other warning and validation fail then the catch block will show warning message. One for [HttpGet] and another for [HttpPost] attributes. If the uploaded value is not empty or null, then all warnings and successful messages will come in other ways in all validation messages as defined in model class file.

Here, error message variable value is assigned to viewbag type that will pass value from controller to view using symbol. Here, I used model class file reference to access properties , message and function validation through base class object. Then, I used viewbag validation messages using javascript as defined earlier in controller class file.

The button controller used for post back to server and check validation of uploaded file by the end user. The App View Design looks like this. Here no file is uploaded So, The Message will come like this. Here I uploaded one image file , The invalid file extension message will come. I uploaded one txt file with out any error. I uploaded one Excel file with out any error.