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Added on January 19,2012


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The opinions expressed herein are my own personal opinions and does not represent the opinions of my employers. Nor does it represent the opinion of my dog, because I don’t have one.


Vinz' Blog (ProudMonkey) "Code, Beer and Music ~ my way of being a programmer" C#
Xamarin.Android - Testing, Debugging and Deploying Apps to Wear and Handheld devices
In my previous post we talked about how to create app in Wearable and Handheld devices and created a simple implementation of sending/syncing data. In this post I'm going to demonstrate how to deploy and test apps in real device. First of all I am using Nexus 9 and LG G Watch as my test devices. Before we start make sure that USB Driver for Android is installed in your machine. You can verify it by right clicking on the COMPUTER > MANAGE > DEVICE MANAGER > OTHER DEVICES. If the driver isn't ......

Posted On Thursday, April 23, 2015 10:48 PM

Xamarin.Android - Syncing data between Wearable and Handheld devices
In my previous posts I've talked about setting up your development environment to get started with Android development using Xamarin and Visual Studio and also talked about a brief introduction about wearable. In this post I'm going to demonstrate how sync data in your android application. Creating the Wear App Project To get started let's fire up Visual Studio 2013 and select FILE > NEW > PROJECT. Under Templates > C# > Android, select Wear App (Android) Project. You should be able to ......

Posted On Thursday, April 23, 2015 1:15 AM

Why DataSet creates TableN as the Default Table name?
Few days ago I have encountered a question in asp.net forums asking if why does the DataSet creates a default name as Table1 well in fact the name doesn’t really exist in the database. So I thought I’d share the answer that I have provided in that thread as a reference to others. As the documentation states that: "Multiple Result Sets: If the DataAdapter encounters multiple result sets, it will create multiple tables in the DataSet. The tables will be given an incremental default name of TableN, ......

Posted On Monday, August 3, 2009 5:15 PM

Validate Image extensions upon Upload
In my previous two examples, we have learned on how to Upload and Save the Image to a Folder and path to database and how to Save the Image to the Database. The two previous examples only tackle the basics about uploading and saving a file without validating the file to be uploaded. In this example, I’m going to show on how to validate a file that only allows image files to be uploaded using server side validations. Here are the code blocks below: private void StartUpLoad() { if (FileUpload1.HasFile) ......

Posted On Monday, August 3, 2009 3:21 PM

Uploading and Storing Image Path to Database and Image to Folder - Part 2 (Displaying of Images)
In my previous example, we have learned on how to save the actual image to a folder and image path to the database. In this example, I’m going to show on how to display those images in a GridView and Repeater control. To get started, let’s create a method for fetching the image information from the database. Here’s the code block below: private DataTable GetData() { DataTable dt = new DataTable(); SqlConnection connection = new SqlConnection(GetConnection... try { connection.Open(); string ......

Posted On Sunday, August 2, 2009 5:55 PM

Tip Of The Day - Remove GridView Row Highlighting on Edit Mode
Typically we will attach the mouseover and mouseout client-side events on the gridview rows to highlight rows on mouseover, but there are cases that we don't want to make the row highlighted when we are on edit mode. To do this we can check the GridView EditIndex to determine if the row is on edit mode and then do the validation there. Here's a sample code block below of what I am talking about: protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) ......

Posted On Tuesday, April 26, 2011 2:17 PM

Entity Framework - Editing, Updating and Deleting Data in the Form
Previously we've talked about how to fetch the data from the database and populate the form with EF. In this example I'm going to demonstrate how to do Edit,Update and Delete operations in the form with Entity Framework. And oh since this is a continuation of my previous example I would suggest you to refer that first before you go any further. STEP 1: Setting up the UI Since this is a continuation of my previous example then I'm jus going to use the same layout and extend it a bit by adding some ......

Posted On Monday, April 4, 2011 8:00 PM

Entity Framework - Fetching and Populating the Data in the Form
In Part 1 we've talked about how to insert data to the database with Entity Framework. In this part I'm going to demonstrate how to fetch the data from the database and populate the form fields with Entity Framework. STEP 1: Setting up the Form To get started let's go ahead and fire-up visual studio and add a new WebForm. For the simplicity of this demo I just set up the form like this: <asp:Content ID="Content2" ContentPlaceHolderID="MainC... runat="server"> <asp:DropDownList ID="ddlUser" ......

Posted On Monday, April 4, 2011 7:41 PM

Entity Framework - Inserting Data to Database
Few months ago I wrote a series of articles regarding how to Insert, Update, Fetch and Delete data in the form using LINQ to SQL. You can view the series of articles below: Inserting Data to Database using LINQ to SQL Fetching Data from Database and Populating fields in the Form using LINQ to SQL Editing, Updating and Deleting Data in the Form using LINQ to SQL In this article I'm going to demonstrate the basics on how to work with MS Entity Framework. Basically in this part I'm going to show you ......

Posted On Monday, April 4, 2011 11:59 AM

Inserting and Deleting Sub Rows in GridView
A user in the forums (http://forums.asp.net) is asking how to insert sub rows in GridView and also add delete functionality for the inserted sub rows. In this post I'm going to demonstrate how to this in ASP.NET WebForms. The basic idea to achieve this is we just need to insert row data in the DataSource that is being used in GridView since the GridView rows will be generated based on the DataSource data. To make it more clear then let's build up a sample application. To start fire up Visual Studio ......

Posted On Tuesday, January 4, 2011 5:52 PM

Uploading and Importing CSV file to SQL Server in ASP.NET WebForms
Few weeks ago I was working with a small internal project that involves importing CSV file to Sql Server database and thought I'd share the simple implementation that I did on the project. In this post I will demonstrate how to upload and import CSV file to SQL Server database. As some may have already know, importing CSV file to SQL Server is easy and simple but difficulties arise when the CSV file contains, many columns with different data types. Basically, the provider cannot differentiate data ......

Posted On Monday, January 3, 2011 5:03 PM

FAQ: GridView Calculation with JavaScript - Displaying Quantity Total
Previously we've talked about how calculate the sub-totals and grand total in GridView here, how to format the numbers into a currency format and how to validate the quantity to just accept whole numbers using JavaScript here. One of the users in the forum (http://forums.asp.net) is asking if how to modify the script to display the quantity total in the footer. In this post I'm going to show you how to it. Basically we just need to modify the javascript CalculateTotals function and add the codes ......

Posted On Thursday, December 9, 2010 5:54 PM

FAQ: GridView Calculation with JavaScript - Formatting and Validation
In my previous post here we've talked about how to calculate the sub-totals and grand total in GridView using JavaScript. In this post I'm going take more step further and will demonstrate how are we going to format the totals into a currency and how to validate the input that would only allow you to enter a whole number in the quantity TextBox. Here are the code blocks below: ASPX Source: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml... ......

Posted On Thursday, December 9, 2010 5:17 PM

FAQ: GridView Calculation with JavaScript
In my previous post I wrote a simple demo on how to Calculate Totals in GridView and Display it in the Footer. Basically what it does is it calculates the total amount by typing into the TextBox and display the grand total in the footer of the GridView and basically it was a server side implemenation. Many users in the forums are asking how to do the same thing without postbacks and how to calculate both amount and total amount together. In this post I will demonstrate how to do this using JavaScript. ......

Posted On Wednesday, December 8, 2010 10:29 PM

Master Page: Dynamically Adding Rows in ASP Table on Button Click event
In my previous post here, I wrote an example that demonstrates how are we going to generate table rows dynamically using ASP Table on click of the Button control. Now based on some comments in my previous example and in the forums they wanted to implement it within Masterpage. Unfortunately the code in my previous example doesn't work in Masterpage for the following main reasons: The Table is dynamically added within the Form tag and so the TextBox control will not be generated correcty in the page. ......

Posted On Friday, December 3, 2010 8:35 PM

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