如何使用c＃.net中的选项卡控件 [英] how to work with tab control in c#.net

问题描述

hai，

i正在使用c＃.net应用程序，在我的应用程序中，我在这三个选项卡中有一个tabcontrol现在我的要求是如何将一个选项卡切换到另一个

hai,
i am working on c#.net application ,in my application i have one tabcontrol in that three tabs now my requirement is how switch one tab to another

推荐答案

如果以编程方式切换选项卡是您要求的，那么切换到tabPage2：

If switching tabs programmatically is what you are asking for, then to switch to tabPage2:

this.tabControl1.SelectedIndex = tabControl1.TabPages.IndexOf(this.tabPage2);

我得到了回答我的问题



public void view_load_lkg_to_seventh（）

{

/ /此代码用于自动调整列的大小

dataGridView1.AutoResizeColumns（）;

dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;





ConnectionStringSettings consettings = ConfigurationManager.ConnectionStrings [smssms];

string connectionString = consettings.ConnectionString;

SqlConnection cn = new SqlConnection（connectionString）;



SqlCommand sqlcmd = new SqlCommand（）;

SqlDataAdapter da = new SqlDataAdapter（）;

DataTable dt = new DataTable（）;



cn.Open（ ）;

//传递查询



sqlcmd =新的SqlCommand（@select * from lkg_to_seventh_marks，cn）;

da = new SqlDataAdapter（sqlcmd）;

//填充SQL数据适配器中的数据

da.Fill（dt）;

//将它绑定在DataGrid视图中

dataGridView1.DataSource = dt;

cn.Close（）;

}

public void view_load_tenthclass_marks（）

{

//此代码用于自动调整列的大小

dataGridView3.AutoResizeColumns（）;

dataGridView3.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;





ConnectionStringSettifdgngs consettings = ConfigurationManager .ConnectionStrings [smssms];

string connectionString = consettings.ConnectionString;

SqlConnection cn = new SqlConnection（connectionString）;



SqlCommand sqlcmd = new SqlCommand（）;

SqlDataAdapter da = new SqlDataAdapter（）;

DataTable dt = new DataTable（）;



cn.Open（）;

//传递查询



sqlcmd =新的SqlCommand （@select * from tenthclass_marks，cn）;

da = new SqlDataAdapter（sqlcmd）;

//填充SQL数据适配器中的数据

da.Fill（dt）;

// B.将它放在DataGrid视图中

dataGridView3.DataSource = dt;

cn.Close（）;

}

i got answer to my question

public void view_load_lkg_to_seventh()
{
//this code for auto resize of columns
dataGridView1.AutoResizeColumns();
dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;


ConnectionStringSettings consettings = ConfigurationManager.ConnectionStrings["smssms"];
string connectionString = consettings.ConnectionString;
SqlConnection cn = new SqlConnection(connectionString);

SqlCommand sqlcmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
DataTable dt = new DataTable();

cn.Open();
//pass query

sqlcmd = new SqlCommand(@"select * from lkg_to_seventh_marks ", cn);
da = new SqlDataAdapter(sqlcmd);
//Fill the data in the SQL Data Adapter
da.Fill(dt);
//Bind it in the DataGrid View
dataGridView1.DataSource = dt;
cn.Close();
}
public void view_load_tenthclass_marks()
{
//this code for auto resize of columns
dataGridView3.AutoResizeColumns();
dataGridView3.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;


ConnectionStringSettifdgngs consettings = ConfigurationManager.ConnectionStrings["smssms"];
string connectionString = consettings.ConnectionString;
SqlConnection cn = new SqlConnection(connectionString);

SqlCommand sqlcmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
DataTable dt = new DataTable();

cn.Open();
//pass query

sqlcmd = new SqlCommand(@"select * from tenthclass_marks ", cn);
da = new SqlDataAdapter(sqlcmd);
//Fill the data in the SQL Data Adapter
da.Fill(dt);
//Bind it in the DataGrid View
dataGridView3.DataSource = dt;
cn.Close();
}

private void tabControl1_Click(object sender, EventArgs e)
           {
               if
           (tabControl1.SelectedTab == tabPage2)
               {
                   view_eighth_to_ninth_marks();
               }
               else
                   if (tabControl1.SelectedTab == tabPage1)
                   {   view_load_lkg_to_seventh();
               }
               else if(tabControl1.SelectedTab == tabPage3)

               {
                view_load_tenthclass_marks();
               }

}

}

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