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How to read data from a text file in c#?
string filePath = @”c:\Sample.txt”; string line,SNo=” “; if (File.Exists(filePath)) { StreamReader file = null; try { file = new StreamReader(filePath); while ((line = file.ReadLine()) != null) {...
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How to select distinct records from a dataset using c#?
DSet.Tables[0].DefaultView.ToTable( true, “ColumnName”); Udhaya
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How to change font color at runtime in c#?
First drag and place colorDialog from toolbox into the form and in the event label1.ForeColor = Color.Red; Udhaya Pisquare
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How to add a new Column to Dataset at runtime?
Adding a new datacolumn to dataset DateTable dt = new DataTable(); DataColumn DC = new DataColumn(); DC.DataType = Type.GetType(“System.String”); DC.ColumnName = “EmpName”; dt.Columns.Add(DC);...
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How to add a new Row to Dataset at runtime?
Adding a new datarow to dataset DateTable dt = new DataTable(); DataRow DRow = dt.NewRow(); DRow[0] = “First Column of New Row”; dt.Rows.Add(DRow); //Dset.Tables[“TableName”]. Add(DRow); Udhaya...
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How to get MAC Address of a system in c#?
namespace: using System.Management; string id=” “; ManagementObjectSearcher query = null; ManagementObjectCollection queryCollection = null; try { query = new...
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How to close all forms except the active form in c#?
//In the main form private void MainMenu_Load(object sender, EventArgs e) { this.IsMdiContainer = true; } //In the call to other forms private void employeeDetailsToolStripMenuItem_Click(object...
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How to change form size depending on screen resolution?
Suppose the screen resolution in which you design the form is 1024*768 then Rectangle r = Screen.GetBounds(this); this.Location = new Point(0, 0); this.Size = r.Size; double PercWidthChng = (r.Width –...
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How to create a database backup programmatically in c#?
SQL Stored Procedure: Create procedure BackupDatabase(@Location varchar(300)) as Backup Database PACB to DISK = @Location C# code: private void btnBrowse_Click(object sender, EventArgs e) {...
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How to restore a database programmatically in c#?
SQL Stored Procedure: Under master database Create procedure RestoreDatabase(@BackupFile varchar(500),@TestDB varchar(100),@RestoreFile varchar(500)) as DECLARE @query varchar(2000) DECLARE @DataFile...
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