Problem constructing the select statement with 'LIKE'

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Problem getting the quotes right

Please assist .

C#

SqlCommand SqlCmd = new SqlCommand(@"Select * from Loanmaster where 
                    Id_Code  LIKE "%"+ txt_Search.Text+"%"+  or
                    Customer LIKE "%"+ txt_Search.Text+"%"+  or
                    Apprs_No LIKE "%"+ txt_Search.Text+"%", sqlCon);

Thanks

Posted 7-Jun-14 21:43pm

Member 10744248

Updated 7-Jun-14 22:03pm

DamithSL

v3

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Member 10744248 8-Jun-14 4:32am

After correcting it had this error message

Must declare the scalar variable "@searchkey"

running C# asp.net vs 2010

DamithSL 8-Jun-14 4:54am

can you past the code you tried?
have you add the below line
SqlCmd.Parameters.AddWithValue("@searchkey", "%" + txt_Search.Text + "%");

Member 10744248 8-Jun-14 5:11am

protected void txt_Incremental_Click(object sender, EventArgs e)
{

//INCREMENTAL SEARCH BEGINS
try
{
// Connection to the database

string str;
str = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
SqlConnection sqlCon = new SqlConnection(str);

//Call the statement

SqlCommand SqlCmd = new SqlCommand(@"Select * from Loanmaster where Id_Code LIKE @searchkey or
Customer LIKE @searchkey or
Apprs_No LIKE @searchkey", sqlCon);

//SqlCmd.CommandType = System.Data.CommandType.Text;
//SqlCmd.Parameters.AddWithValue("@searchkey", SqlDbType.VarChar).Value = txt_Search.Text;

SqlCmd.Parameters.AddWithValue("@searchkey", "%" + txt_Search.Text +"%");

//Open the sql data connection
sqlCon.Open();

//Execute the program
SqlCmd.ExecuteNonQuery();

//Display confirmation message
lblstatus.Text = "Search Result with string : " + txt_Search + "was sucessful";

sqlCon.Close();

}
catch (Exception ex)
{
lblstatus.Text = ex.Message;
}
//Clear all text boxes
txt_Acct1.Text = "";
txt_Acct2.Text = "";
txt_Acct3.Text = "";
txt_Appraisal.Text = "";
txt_Bank_Name1.Text = "";
txt_Bank_Name2.Text = "";
txt_Bank_Name1.Text = "";
txt_Bank_Name3.Text = "";
txt_Bank_No1.Text = "";
txt_Bank_No2.Text = "";
txt_Bank_No3.Text = "";
txt_Branch_Name.Text = "";
txt_Branch_No.Text = "";
txt_Customer.Text = "";
txt_Director1.Text = "";
txt_Director2.Text = "";
txt_Established.Text = "";
txt_Id_Code.Text = "";
// txt_Incremental.Text = "";
txt_Mail1.Text = "";
txt_Mail2.Text = "";
txt_Mail3.Text = "";
txt_Mang1.Text = "";
txt_Mobile1.Text = "";
txt_Mobile2.Text = "";
txt_Office.Text = "";
txt_Registered.Text = "";
txt_Search.Text = "";
txt_Sec_No.Text = "";
txt_Share1.Text = "";
txt_Share2.Text = "";
txt_Share2.Text = "";
txt_Share3.Text = "";
txt_Share4.Text = "";
txt_Share5.Text = "";
txt_Share6.Text = "";
txt_Tele1.Text = "";
txt_Tele2.Text = "";

//
//Updating the gridview and form begin
//
try
{

SqlConnection connect = new SqlConnection();
connect.ConnectionString = ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString;
connect.Open();

SqlDataAdapter da = new SqlDataAdapter(@"Select * from Loanmaster where Id_Code LIKE @searchkey or
Customer LIKE @searchkey or
Apprs_No LIKE @searchkey", connect);

DataSet ds = new DataSet();
da.Fill(ds, "MLOANJOIN");

GridView1.DataSourceID = "SqlDataSource1";
GridView1.DataBind();

txt_Acct1.Text = ds.Tables["MLOANJOIN"].Rows[0]["ACCT_NUMBER1"].ToString();
txt_Acct2.Text = ds.Tables["MLOANJOIN"].Rows[0]["ACCT_NUMBER2"].ToString();
txt_Ac

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DamithSL · Answer 1 · 2014-06-07T21:59:00

you can try like below

C#

SqlCommand SqlCmd = new SqlCommand("Select * from Loanmaster where "+
                    "Id_Code  LIKE '%"+ txt_Search.Text+ "%' or "+
                    "Customer LIKE '%"+ txt_Search.Text+"%'  or "+
                    "Apprs_No LIKE '%"+ txt_Search.Text+ "%'", sqlCon);

But that is not secure. Use Parameterized sql statement, it is safe and you don't need to worry about quotes.

C#

SqlCommand SqlCmd = new SqlCommand(@"Select * from Loanmaster where 
 Id_Code LIKE @searchkey or
 Customer LIKE @searchkey or
 Apprs_No LIKE @searchkey " , sqlCon);
SqlCmd.Parameters.AddWithValue("@searchkey", "%" +  txt_Search.Text + "%");