我想问你如何使用C#和SQL Server填充组合框 [英] I want to ask you how to fill combo box using c# and in sql server
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问题描述
我想问你如何使用c#和sql server填充组合框
I want to ask you how to fill combo box using c# and in sql server
推荐答案
尝试一下.
Try this.
Con = new SqlConnection("yOUR cONNECTION sTRING ");
Con.Open();
Cmd = new SqlCommand("Select * from Products");
dt = new SqlDataAdapter("Select ProductId,ProductName+ProductPrice as Name from products", Con);
DataSet ds = new DataSet();
dt.Fill(ds);
DropDownList1.DataSource = ds;
DropDownList1.DataTextField = Convert.ToString(ds.Tables[0].Rows[0]["Name"]);
DropDownList1.DataValueField = Convert.ToString(ds.Tables[0].Rows[0]["ProductId"]);
DropDownList1.DataBind();
Con.Close();
string connecttionstring = System.Configuration.ConfigurationManager.ConnectionStrings["connectionString"].ConnectionString;
SqlConnection cs1 = new SqlConnection(connecttionstring);
SqlCommand cmd1 = new SqlCommand();
cs1.Open();
cmd1.CommandText = "your select Query";
cmd1.Connection = cs1;
DataSet dtst = new DataSet();
SqlDataAdapter dp = new SqlDataAdapter(cmd1);
dp.Fill(dtst);// for select query
DropDownList1.DataSource = dtst;
DropDownList1.DataTextField = "Value you want to show";//this value should be there in your select query
DropDownList1.DataValueField = "Value you want to select ";//this value should be there in your select query
DropDownList1.DataBind();
请参见 ^ ]
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