当我使用csharp单击组合框时，如何在datagridview中添加列 [英] how to add column in datagridview when i click the combobox using csharp

问题描述

在设计中我有一个组合框。在那里有组合框项目。





当我选择项目时组合框，要在数据网格中添加的项目按行排序。





我该怎么办。



例如组合框项目如下





组合框Rs

GS

VB



当我在组合框中选择VB时，Gs表示要在行数据视图中添加项目。



输出如下;





VB GS



我该怎么办。请帮助我。

in the design i have one combo box.in that combo box items are there.


when i select items in the combo box that items to be added in data grid ivew by rows.


how can i do.

for example in the combobox items are as follows


combobox Rs
GS
VB

when i select the VB,Gs in combobox that items to be added in datagridview by rows.

Ouput as follows;


VB GS

how can i do.please help me.

推荐答案

重写为

rewrite as

protected void combobox_SelectedIndexChanged(object sender, EventArgs e)
{
  DataTable dt = new DataTable;
 
  dt.Columns.Add("ComboBoxItems");
  // add combox selected item to datatable object
  dt.Rows.Add(new object[] { combox.SelectedItem.Text });
  DataGridView.DataSource = dt;
}

试试这个...

try this...

public void LoadGridView()
{
   Datatable dt = (Datatale)ViewState("CurrentTable");
   GridView.DataSource = dt;
   GridView.DataBind();
}

Combobox selectedindexchanged event

Combobox selectedindexchanged event

protected void combobox_SelectedIndexChanged(object sender, EventArgs e)
{
   Datatable dt = (Datatale)ViewState("CurrentTable");

    if(ViewState("CurrentTable")!= null)
    {
       dt = (Datatale)ViewState("CurrentTable");
    }
    else
    {
       dt = new Datattable;
    }
    
    dt.Colums.Add("ComboBoxItems");
    // add combox selected item to datatable object
    dt.Rows.Add(new object[] { combox.SelectedItem.Text });
    
    ViewState("CurrentTable") = dt;
    // call LoadGridView Funcation
    LoadGridView();
}

希望这会对你有帮助..

hope this will help you..

这篇关于当我使用csharp单击组合框时，如何在datagridview中添加列的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！