C# Corner
Tech
News
Videos
Forums
Trainings
Books
Events
More
Interviews
Jobs
Live
Learn
Career
Members
Blogs
Challenges
Certifications
Bounties
Contribute
Article
Blog
Video
Ebook
Interview Question
.NET
.NET Aspire
.NET Core
.NET MAUI
.NET Standard
Active Directory
ADO.NET
Agile Development
AI
AI Agents
AJAX
AlbertAGPT
Alchemy
Alexa Skills
Algorand
Algorithms in C#
Android
Angular
Apple
Arbitrum
ArcObject
ASP.NET
ASP.NET Core
Augmented Reality
Avalanche
AWS
Azure
Backbonejs
Base Blockchain
Big Data
Bitcoin
BizTalk Server
Blazor
Blockchain
Bootstrap
Bot Framework
Business
Business Intelligence(BI)
C#
C# Corner
C# Strings
C, C++, MFC
Career Advice
Careers and Jobs
Chapters
ChatGPT
Cloud
Coding Best Practices
Cognitive Services
COM Interop
Compact Framework
Context Engineering
Copilot
Cortana Development
Cosmos DB
Cryptocurrency
Cryptography
Crystal Reports
CSS
Current Affairs
Custom Controls
Cyber Security
Data Mining
Data Science
Data Structures and Algorithms (DSA)
Databases & DBA
Databricks
Design Patterns & Practices
DevExpress
DevOps
DirectX
Docker
Dynamics CRM
Enterprise Development
Entity Framework
Error Zone
Exception Handling
F#
Files, Directory, IO
Flutter
Games Programming
GDI+
General
Generative AI
Generative Engine Optimization (GEO)
GO
Google Cloud
Google Development
Graphics Design
Graphite Studio
Hackathons
Hardware
Hiring and Recruitment
HoloLens
How do I
HTML 5
Infragistics
Internet & Web
Internet of Things
Ionic
Java
Java and .NET
JavaScript
JQuery
JSON
JSP
Knockout
Kotlin
Kubernetes
Langchain
Leadership
Learn .NET
Learn iOS Programming
LINQ
LLMs
Machine Learning
Metaverse
Microsoft 365
Microsoft Fabric
Microsoft Office
Microsoft Phone
Microsoft Teams
Mobile Development
MongoDB
MuleSoft
MySQL
n8n
NEAR
NetBeans
Networking
Next.js
NFT
NoCode LowCode
Node.js
Office Development
OOP/OOD
Open Source
Operating Systems
Oracle
Outsourcing
Philosophy
PHP
Polygon
PostgreSQL
Power Apps
Power Automate
Power BI
Power Pages
Printing in C#
Products
Progress
Progressive Web Apps
Project Management
Prompt Engineering
Public Speaking
Python
Q#
QlikView
Quantum Computing
R
React
React Native
Reports using C#
RevealBi
Robotics & Hardware
RPA
Ruby on Rails
RUST
RWA (Real-World Assets)
Salesforce
Security
Servers
ServiceNow
SharePoint
Sharp Economy
SignalR
Smart Devices
Snowflake
Software Architecture/Engineering
Software Testing
Solana
Solidity
Sports
SQL
SQL Server
Startups
Stratis Blockchain
Swift
SyncFusion
Threading
Tools
TypeScript
Unity
UWP
Vibe Coding
Visual Basic .NET
Visual Studio
Vue.js
WCF
Wearables
Web API
Web Design
Web Development
Web3
Windows
Windows Controls
Windows Forms
Windows PowerShell
Windows Services
Workflow Foundation
WPF
Xamarin
XAML
XML
XNA
XSharp
Register
Login
1
Answer
check double dot extension of file in ValidationExpression
Rohan Gupta
6y
678
0
1
.NET
Reply
tcheck double dot extension of file in ValidationExpression asp.net
Delete Row
Delete Column
Insert Link
×
Insert
Cancel
Embed YouTube Video
×
Width (%)
Height (%)
Insert
Cancel
Table Options
×
Rows
Columns
First row as header
Create Table
Insert Image
×
Selected file:
Alignment
Left
Center
Right
Select an image from your device to upload
Upload to Server
Cancel
Post
Reset
Cancel
Answers (
1
)
Related Discussion