将数据表值绑定到数据网格的问题 [英] problem on binding datatable value to datagrid

问题描述

朋友们，
以下代码用于将数据表绑定到datagridview.

Hi friends,
The following code for binding datatable to datagridview.

DataTable dt = new DataTable();
               DataColumn dc;
               dc = new DataColumn("AdmissionNumber");
               dt.Columns.Add(dc);
               dc = new DataColumn("StudentName");
               dt.Columns.Add(dc);
               dc = new DataColumn("Class");
               dt.Columns.Add(dc);
               dc = new DataColumn("Section");
               dt.Columns.Add(dc);
               string studentname=comboBox4.Text;
               int classname =int.Parse( comboBox2.SelectedValue.ToString());
               DataRow dr =dt.NewRow();
               dr["AdmissionNumber"] =Convert.ToString( ibl4.bindadminid(studentname,classname));
               dr["StudentName"] = comboBox4.Text;
               dr["Class"] = comboBox2.Text;
               dr["Section"] = comboBox3.Text;
               dataGridView2.DataSource = dt;

运行时，应用程序gridview在gridview单元格中不显示该值.有什么问题吗?注意.
中可用的值

when run the application gridview doesnt show the value in the gridview cell. What is the problem?.note. values available in

Convert.ToString( ibl4.bindadminid(studentname,classname));

和

and

comboBox4.Text;

comboBox2.Text;

comboBox3.Text;

预先谢谢您

Advance Thank you

推荐答案

在设置数据源之前尝试此操作

try this before set datasource

dt.Rows.Add(dr);
dataGridView2.DataSource = dt;

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