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Binding the sqlserver database fields into textbox i.e. Autocomplete complete extender...

Posted By:Ashfaque       Posted Date: May 10, 2011    Points: 40    Category: Ajax    URL: http://www.dotnetspark.com  

In my article i a have explained simplest way to achieve the task of search engine i.e. we can search the data of sql database,when the user prompted to retrieve the particular data from database just by entering the few characters they wish to retrieve the text box will automatically retrieve the related data starting with that letter entered by the users.its quite simple too.The main source i have enclosed here.

                           ***  My asp source code will look like this ****



                CompletionInterval="10" MinimumPrefixLength="1" ServiceMethod="Getinfo"
            ServicePath="Webservice.asmx" TargetControlID="TextBox1" UseContextKey="True">



The code snippet to call web method .here my web method is"GetInfo" and servicepath is "Webservice.asmx".The code is here...

        public string[] Getinfo(string prefixText)
 int count = 10;
 string sql = "Select * from PlanDetails Where Planname like @prefixText";
 SqlDataAdapter da = new SqlDataAdapter(sql,"Data Source=ADMIN-2BB4800E8;Initial Catalog=do;User ID=sa;Password=1a2s");
 da.SelectCommand.Parameters.Add("@prefixText", SqlDbType.VarChar, 50).Value = prefixText+ "%";
 DataTable dt = new DataTable();
 string[] items = new string[dt.Rows.Count];
 int i = 0;
 foreach (DataRow dr in dt.Rows)
     items.SetValue(dr["Planname"].ToString(), i);

 return items;
Note:i retrieved the data from the database table called "Plandetails",the field which i retrieved and bind with the database is "Planname".


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