将DataTable中的值作为组合框输入到gridview中
本文关键字:输入 组合 gridview DataTable | 更新日期: 2023-09-27 18:30:13
我正试图从数据表中获取一列,以便在网格视图中显示为组合框。还需要有能力用一个小集合来填充组合进行选择。当我从Gui绑定它时,它不会显示值,所以我正在尝试编程,但似乎找不到正确的代码。
connection2 = new MySqlConnection(ConnectionString2);
try
{
string proid = txtbxProjId.Text;
//prepare query to get all records from items table
string query2 = "select sl.sample_id As sample_id, sl.sample_number As Sample_Number, sl.sample_date As Sample_Date, sl.sample_time As Sample_Time, sl.sample_comments As Sample_Comments FROM spt_sample_login sl Where project_id = '"+proid+"'";
//prepare adapter to run query
adapter2 = new MySqlDataAdapter(query2, connection2);
adapter3 = new MySqlDataAdapter(query2, connection2);
//create a DataTable to hold the query results
DataTable dTable2 = new DataTable();
DataSet DS2 = new DataSet();
//fill the DataTable
//get query results in dataset
adapter2.Fill(dTable2);
adapter3.Fill(DS2);
//return datatable with all records
//BindingSource to sync DataTable and DataGridView
//set the BindingSource DataSource
GridView1.DataSource = dTable2;
this.GridView1.Columns["sample_id"].Visible = false;
this.GridView1.Columns["Sample_Type"].DisplayIndex = 4;
this.GridView1.Columns["Sample_Type"].Visible = true;
//set the DataGridView DataSource
}
catch (MySqlException ex)
{
}
}
这是有效的,但将Sample_Type显示为一个文本框,我希望它是一个以F、p、Q、B为选项的组合。
谢谢布伦特
您必须将组合框放在itemTemplate中,并且必须在rowDataBound事件期间填充它。
我当前项目的快速示例:
DropDownList ddlRole = (DropDownList)e.Row.FindControl("ddlRole");
ddlRole.DataSource = GetTruckersRoles();
string[] rolesList = Roles.GetRolesForUser((string)gvTruckers.DataKeys[e.Row.RowIndex][0]);
if (rolesList.Length > 0)
{
//If user is not in any roles, dont' do this
ddlRole.SelectedValue = rolesList[0];
}
ddlRole.DataBind();
只需根据您的情况调整代码即可。