无法使用数据集加载datagridview中的多个数据源？

问题描述

I have a windows forms application where i have to load different fee structures tables for different courses in one datagridview using the textbox but i do not know how to use the mulitple datasources for datagridview I have 20 fee structure which differ from each of them by the values in it I have a Textbox where i would retrieve the name of the table to be retrieved but how should i proceed further ?

I used the have made a DataSet named fSDataSet where all the datatables are stored Now i want to load the tables when i get the values from the form

private void fSDataSetBindingSource_CurrentChanged（object sender，EventArgs e）

{





BindingSource bindingsource = new BindingSource（）;

string getfeest =FYBIOTECH;

string s = @Data Source = SRINATH-PC\SQLEXPRESS; Initial Catalog = FS; Integrated Security = True; Pooling = False;

SqlConnection OK =新SqlConnection（s）;

SqlDataAdapter getfeestructure = new SqlDataAdapter（）;

SqlCommandBuilder commandBuilder = new SqlComman dBuilder（getfeestructure）;



SqlCommand cmd = new SqlCommand（@select * from+ getfeest，OK）;

getfeestructure.SelectCommand = cmd;









DataTable dt = new DataTable（@ fsDataSet。+ getfeest）;

dt.Locale = System.Globalization.CultureInfo.InvariantCulture;

getfeestructure.Fill（dt）;

bindingsource.DataSource = dt;

dataGridView1.AutoResizeColumns（
DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader）;





}

private void button1_Click（object sender，EventArgs e）

{

fSDataSetBindingSource_CurrentChanged（sender，e）;

}

现在错误是它没有显示其中的行而且我无法理解实际的错误

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