我尝试了很多类型,我不知道如何插入。
sql server有什么问题吗?
请快点帮助我..
SqlConnection con = new SqlConnection( "Data Source=localhost/SQLEXPRESS.Polaris.dbo;Initial Catalog=Polaris;Integrated Security=True;Pooling=False");
protected void Page_Load(object sender, EventArgs e)
{
con.Open();
}
protected void Button3_Click(object sender, EventArgs e)
{
con.Open();
SqlDataReader rdr = null;
//string s1 = "insert into Login values('" + TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.SelectedItem.Value + "'";
SqlCommand cmd1 = new SqlCommand("insert into Login values('" + TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.SelectedItem.Value + "'");
cmd1.Connection = con;
rdr = cmd1.ExecuteReader();
Label2.Visible = true;
//EndEventHandler.RemoveAll();
}
protected void Button2_Click(object sender, EventArgs e)
{
Response.Redirect("WebForm1.aspx");
}
答案 0 :(得分:1)
无法隐式转换类型'WebApplication4.SqlConnection' 'System.Data.SqlClient.SqlConnection'
根据错误,您在WebApplication4名称空间中有一个名为SqlConnection的类。您可能错误地生成了该类。您需要先删除该类,然后添加对System.Data.SqlClient
答案 1 :(得分:0)
以下是您可以做的事情:
SqlConnection con = new SqlConnection( "Data Source=localhost/SQLEXPRESS.Polaris.dbo;Initial Catalog=Polaris;Integrated Security=True;Pooling=False");
protected void Button3_Click(object sender, EventArgs e)
{
con.Open();
string s1 = "insert into Login values('" + TextBox1.Text + "','" + TextBox2.Text + "','" + DropDownList1.SelectedItem.Value + "'";
SqlCommand cmd = new SqlCommand(s1, con);
cmd.ExecuteNonQuery();
}