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7.8

Unable to hide DatraGridView column in ASP.Net

Asked by allanmark in Programming for ASP.NET, C# Programming Language

Tags: MS, Vis Web Dev

Greetings all

I am busy with s very simple (at least I thought it was!) example of a DataGridView. All I am doing is trying
to hide the first column, change the header text and connect the datasoure to the grid.

When "SetUp_Grid" executes, I get teh following: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

WHAT SHOULD I BE DOING?

Also, if someone knows of a good intro to the DataGridView, that will take one through all the ins and outs - that woudl be great!!!

In advance, thanks!!!

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THE DATA STRUCTURE:
 
CREATE TABLE [dbo].[Family](
	F_ID			int IDENTITY(1,1) not null,
	F_First_Name		varchar(12) not null,
	F_Surname		varchar(25) not null,
	F_Age			tinyint,
	F_Hobby			varchar(75),
	F_Phone_No		char(7),
	F_Cell_No		char(10),
	F_Alarm_Code		tinyint,
CONSTRAINT [PK_FAMILY_SK] PRIMARY KEY CLUSTERED 
(	[F_ID] ASC)
 
THE CODE:
 
public partial class _Default : System.Web.UI.Page 
{
    DataSet dsFamily = null;
    private string strConnString = System.Configuration.ConfigurationManager.AppSettings["LocalSQLServer"];
 
    //----------------------------------------------------------------------------------------------
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Page.IsPostBack)
        {
            dsFamily = GetFamilyDS();
 
        }
        else
        {
            Cache.Remove("MyFamilyCache");
 
            dsFamily = GetFamilyDS();
 
            gvFamily.DataSource = dsFamily;
            
            SetUp_Grid();
 
            gvFamily.DataBind();
            
        }
 
    }
 
    //----------------------------------------------------------------------------------------------
    protected void SetUp_Grid()
    {
        
        gvFamily.Columns[0].Visible = false;
        gvFamily.Columns[1].HeaderText = "Name";
        gvFamily.Columns[2].HeaderText = "Surname";
        gvFamily.Columns[3].HeaderText = "Age";
        gvFamily.Columns[4].HeaderText = "Hobby";
        gvFamily.Columns[5].HeaderText = "Phone (Hme)";
        gvFamily.Columns[6].HeaderText = "Cell";
        gvFamily.Columns[7].HeaderText = "Alarm Code";
            
    }
    //----------------------------------------------------------------------------------------------
    private DataSet GetFamilyDS()
    {    
        if (Cache["MyFamilyCache"] == null)
        {
            dsFamily = new DataSet();
            SqlConnection sqlConnect = new SqlConnection(strConnString);
            SqlDataAdapter daFamily = new SqlDataAdapter("select * from Family", sqlConnect);        
            daFamily.Fill(dsFamily, "Family");
            Cache.Insert("MyFamilyCache", dsFamily, null, System.Web.Caching.Cache.NoAbsoluteExpiration,
                 TimeSpan.FromMinutes(10));
        }
        else
        {
            dsFamily = (DataSet)Cache["MyFamilyCache"];
        }
        return dsFamily;
    }
 
}
[+][-]01/09/08 03:52 AM, ID: 20617237Accepted Solution

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About this solution

Zones: Programming for ASP.NET, C# Programming Language
Tags: MS, Vis Web Dev
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Solution Provided By: noulouk
Participating Experts: 1
Solution Grade: A
 
[+][-]01/09/08 04:52 AM, ID: 20617592Author Comment

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[+][-]01/09/08 10:22 AM, ID: 20620679Author Comment

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[+][-]01/09/08 01:33 PM, ID: 20622685Author Comment

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[+][-]01/09/08 02:08 PM, ID: 20623019Author Comment

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[+][-]01/10/08 01:27 AM, ID: 20625946Author Comment

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