why and how static variable retain their value after postback form ?

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using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class Default2 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { SqlConnection cn = new SqlConnection("Data Source =Prg1; Initial Catalog= DBTEST; Integrated Security = True"); cn.Open(); DataSet ds= new DataSet (); string str = "DB_test"; SqlDataAdapter da = new SqlDataAdapter(str, cn); da.SelectCommand.CommandType = CommandType.StoredProcedure; da.SelectCommand.CommandText = str; da.Fill(ds); Session["test"] = ds; } protected void btnSubmit_Click(object sender, EventArgs e) { DataSet ds1 = new DataSet(); ds1= (DataSet ) Session ["test"]; DataTable dt = ds1.Tables[0].Clone(); DataRow[] dr; string[] sqlInput = txtNo.Text.Split("-".ToCharArray ()); if (txtNo.Text != "" && txtWeight.Text != "") { if (sqlInput.Length > 1) { string query = ("t1 <=" + sqlInput[0] + " and " + "t2 >=" + sqlInput[1]); dr = ds1.Tables[0].Select(query); } else { string query = ("t1 <=" + txtNo.Text + "and " + "t2 >=" + txtNo.Text); dr = ds1.Tables[0].Select(query); } foreach (DataRow dr1 in dr) { dt.Rows.Add(dr1.ItemArray); } int i = Convert.ToInt32(dt.Rows[0] ["zone"].ToString()); DataTable dt1 = new DataTable(); DataRow[] dr2; dt1 = ds1.Tables[1].Clone(); dr2 = ds1.Tables[1].Select("weight=\'" + txtWeight.Text + "\'"); foreach (DataRow dr3 in dr2) { dt1.Rows.Add(dr3.ItemArray); } DataRow[] dr4; DataTable dt2 = ds1.Tables[2].Clone(); dr4 = ds1.Tables[2].Select(("weight=\'" + txtWeight.Text + "\'")); foreach (DataRow dr5 in dr4) { dt2.Rows.Add(dr5.ItemArray); } int j = Convert.ToInt32(dt.Rows[0] ["days"].ToString()); lbl.Text = dt1.Rows[0][i].ToString(); lbldays.Text = dt2.Rows[0][j].ToString(); } else { } } } ============================================================ ================ CREATE PROCEDURE DB_test AS BEGIN DECLARE @tb1 table ( t1 bigint, t2 bigint, zone bigint, days bigint ) insert into @tb1(t1,t2,zone,days) select (case when(charindex("-",No)-1>0) then convert (bigint,substring(No,1,charindex("-",No)-1)) else No end) as t1, (case when(charindex("-",No)-1>0) then convert(bigint,substring(No,charindex("-",No) +1,len(No))) else No end) as t2, Zone as zone, Days as days from [926] select * from @tb1 select * from zone select * from days end GO

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Name the property which is on a combo box do you set with a column name, prior to setting the data source, to display data in the combo box?

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How to add Textboxes Programmatically in each and every cell of Gridview along with the Excel data in the Gridvew.I mean when i get Excel data in Gridview i need to display Data and Textboxes for each and every cell of Gridview. Got it. Iam new to this concept plz help me. Thanks in Advance.

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Describe how a browser-based Form POST becomes a Server-Side event like Button1_OnClick

1 Answers   ADC, Microsoft,

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What are server-side includes?

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Give the comment tags for the following?

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What are the function of attributes of the <form> tags?

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What inheritance is and an example of when you might use it?

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how to disable previous page complete after logout process

2 Answers   powercom,

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Plz give me the code for binding the dropdownlists with Country,State,City And Each will represent after selecting upper dropdownlist

0 Answers   TCS,

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How are scripts executed?

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