No mapping exists from object type System.Web.UI.WebControls.TextBox to a known managed provider native type

Question

This is my code

SqlCommand cmd = new SqlCommand(\"spRegisterUser\", con);
cmd.CommandType = CommandType.StoredProcedure;

SqlParameter username = new SqlPar         


        

Answer 1

This a function for passing SQL parameter to stored procedure:

public static SqlParameter Parameter( SqlDbType dbtype,  string ParameterName, string Value)
{
        SqlParameter param = new SqlParameter();
        param.ParameterName = ParameterName;
        param.SqlDbType = dbtype;
        param.SqlValue = Value;
        return param;
        // cmd.Parameters.Add(param);
}

You can use this the function like this

SqlCommand cmd = new SqlCommand("SP_Name");
cmd.Parameter.Add(Parameter(SqlDbType.DateTime,"@Parameter",DateTimepicker.Text));

OR

SqlParameter[] parameters =
{
    new SqlParameter("@Task", "insert"),
    new SqlParameter("@Name", clsPluginHelper.DbNullIfNullOrEmpty(txtinstalName.Text)),
    new SqlParameter("@Descp", clsPluginHelper.DbNullIfNullOrEmpty(txtInstDescp.Text)),
    clsPluginHelper.Parameter(SqlDbType.DateTime, "@StartDate",dtpInstStartDate.Text),
    clsPluginHelper.Parameter(SqlDbType.DateTime, "@EndDate",dtpInstalEndDate.Text)
};

Answer 2

You are passing txtPassword which is an object of TextBox, thus you are getting exception.

Problem is in line

SqlParameter password = new SqlParameter("@Password", txtPassword);

So change your code to

SqlParameter password = new SqlParameter("@Password", txtPassword.Text);