我想在asp.net的listbox add方法中的值之间添加空格 [英] I want to add blank spaces in between the values in listbox add method in asp.net
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问题描述
protected void Button1_Click(对象发件人,EventArgs e)
{
con.Open();
SqlCommand cmd = new SqlCommand( 选择*来自R_Product,其中name =' + ProductList.SelectedItem.Text + ' ,con);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
ListBox1.Items.Add(reader [ Product_id]。ToString()+ + reader [ name]。ToString()+ \t\t + reader [ measuremant]。ToString()+ \t\t + reader [ Quantity]。ToString( )+ \t\t + reader [ Price]。ToString()+ \t\t + reader [ gross]。ToString ());
}
reader.Close();
con.Close();
}
int i = 0 ;
受保护 void Button2_Click( object sender,EventArgs e)
{
ListBox1.Items.Clear();
}
解决方案
您创建的字符串在渲染后将成为HTML代码的一部分。 HTML - 按设计 - 删除重复的空白字符。如果您想保留确切的格式,则必须使用前 [ ^ ] tag ...
protected void Button1_Click(object sender, EventArgs e)
{
con.Open();
SqlCommand cmd = new SqlCommand("Select * from R_Product where name='" + ProductList.SelectedItem.Text + "'", con);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
ListBox1.Items.Add(reader["Product_id"].ToString() + " " + reader["name"].ToString() + "\t\t" + reader["measuremant"].ToString() + "\t\t" + reader["Quantity"].ToString() + "\t\t" + reader["Price"].ToString() + "\t\t" + reader["gross"].ToString());
}
reader.Close();
con.Close();
}
int i = 0;
protected void Button2_Click(object sender, EventArgs e)
{
ListBox1.Items.Clear();
}
解决方案
The string you created will be part of your HTML code after rendering. HTML - by design - removes repeating white-space characters. If you want to keep your exact formatting you have to use the pre[^] tag...
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