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08.15.2008 at 11:42AM PDT, ID: 23652251
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9.0

Need some help with formatting GridView

Asked by knowlton in Programming for ASP.NET

See my screenshots.

Header columns are all out of whack.


I need to correct that ...  also ....  each time there may be a variable number of columns.  I think what I would like to do is make each column a set width and just TRUNCATE and text that goes beyond that width.

I will also include my source code and markup.Start Free Trial 
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CODE BEHIND:
 
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
 
//Most stable version to date.  CHECK ALL functionality is working
//small bug with first row now getting checked
 
public partial class UserControls_Workflow_CO2SearchResults : System.Web.UI.UserControl
{
	private string _workflowConnectionString = ConfigurationManager.ConnectionStrings["WORKFLOWConnection"].ConnectionString;
 
	private DataSet _ds;
 
	//PROPERTY NOT IMPLEMENTED YET - NOT BEING USED YET
	public DataSet CurrentDataSource
	{
		get
		{
			return _ds;
		}
 
		set
		{
			_ds = value;
		}
	}
	
	protected void Page_Load( object sender, EventArgs e )
	{
		string tempArgument = Request.Params.Get("__EVENTARGUMENT");
	
		//INITIALIZATION
		if (!Page.IsPostBack)
		{
			string[] DataKeyNames = { "ID" };
			ViewState["DataKeyNames"] = DataKeyNames;
			ViewState["SortExp"] = DataKeyNames.GetValue(0);
			ViewState["SortDir"] = SortDirection.Descending;
			ViewState["PageIndex"] = 0;
			LocalSelectAllWorkitemTypes();
			GatherCheckBoxStatus(false,false);
			this.BuildGridView(true);			
		}
				
 
		//THE "CHECK ALL" CHECKBOX IN THE HEADER WAS CLICKED
		if (tempArgument == "CHECKALL")
		{
			bool statepassedin = false;
			this.HiddenField1.Value = "false";
 
			string newpageindex = Request.Params.Get("__EVENTTARGET");
			if (newpageindex == "true")
			{
				statepassedin = true;
				this.HiddenField1.Value = "true";
			}
			
			GatherCheckBoxStatus(true,statepassedin);
			BuildGridView(false);			
		}
 
		
 
		//A PAGER BUTTON WAS CLICKED
		if (tempArgument == "PAGERBUTTON")
		{
			string newpageindex = Request.Params.Get("__EVENTTARGET");
			int adjustedPageIndex = Int32.Parse(newpageindex) - 1;
			ViewState["PageIndex"] = adjustedPageIndex;
			GatherCheckBoxStatus(false,false);
			this.BuildGridView(false);			
		}
	}
 
	//PRESERVE THE CHECKBOX STATUS ACROSS POSTBACKS (SORTING AND PAGING)
	private void GatherCheckBoxStatus(bool PerformOverride, bool CheckState)
	{
		string[] arrIDs = this.HiddenField1.Value.Split(new char[] { '|' });
 
		if (PerformOverride)
		{
			DataSet ds = (DataSet)ViewState["DataStore"];
 
			foreach (DataRow row in ds.Tables[0].Rows)
			{				
				string ID = string.Empty;
				string[] datakeynames = (string[])ViewState["DataKeyNames"];
				ID = row[datakeynames.GetValue(0).ToString()].ToString();
 
				if (CheckState)
				{
					if (Array.IndexOf(arrIDs, ID) == -1)
					{
						this.HiddenField1.Value += ID + "|";
					}
				}
				else
				{
					if (Array.IndexOf(arrIDs, ID) != -1)
					{
						this.HiddenField1.Value = this.HiddenField1.Value.Replace(ID + "|", "");
					}
				}
			}
		}
		else
		{
			foreach (GridViewRow row in this.GridViewSearchResults.Rows)
			{
				CheckBox cb = (CheckBox)row.Cells[0].Controls[0];
				string ID = string.Empty;
				ID = this.GridViewSearchResults.DataKeys[row.RowIndex].Value.ToString();
 
				if (cb.Checked)
				{
					if (Array.IndexOf(arrIDs, ID) == -1)
					{
						this.HiddenField1.Value += ID + "|";
					}
				}
				else
				{
					if (Array.IndexOf(arrIDs, ID) != -1)
					{
						this.HiddenField1.Value = this.HiddenField1.Value.Replace(ID + "|", "");
					}
				}
			}
		}
	}
 
 
	//BUILD A TEMPORARY DATASET
	//FUTURE VERSIONS SHOULD USE A PROPERTY FOR THIS
	public void LocalSelectAllWorkitemTypes()
	{
		DataSet ds = new DataSet();
 
		if (ViewState["DataStore"] == null)
		{
			using (SqlConnection connection = new SqlConnection(_workflowConnectionString))
			{
				using (SqlCommand command = new SqlCommand("SelectAllWorkitemTypesTEST", connection))
				{
					command.CommandType = CommandType.StoredProcedure;
					using (SqlDataAdapter adapter = new SqlDataAdapter(command))
					{
						adapter.Fill(ds);
					}
				}
			}
 
			bool chkBool = false;
 
			ds.Tables[0].Columns.Add("chk", chkBool.GetType());
 
			ViewState["DataStore"] = ds;			
		}		
	}
 
	//CLEAR ALL COLUMNS AND REBUILD THE GRIDVIEW PROGRAMMATICALLY
	private void BuildGridView(bool ToggleSort)
	{
		DataSet ds = (DataSet)ViewState["DataStore"];
		this.GridViewSearchResults.AutoGenerateColumns = false;
		this.GridViewSearchResults.DataKeyNames = (string[])ViewState["DataKeyNames"];
		this.GridViewSearchResults.Columns.Clear();
		this.GridViewSearchResults.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;
 
		CheckBoxField cbf = new CheckBoxField();
		cbf.DataField = ds.Tables[0].Columns["chk"].ToString();
		cbf.HeaderText = "";
		cbf.HeaderStyle.ForeColor = System.Drawing.Color.White;
		cbf.HeaderStyle.BackColor = System.Drawing.Color.Black;	
 
		this.GridViewSearchResults.Columns.Add(cbf);
 
		foreach (DataColumn dc in ds.Tables[0].Columns)
		{
			if (dc.ColumnName != "chk")
			{
			
				BoundField bf = new BoundField();				
				
				
 
				bf.HeaderText = dc.ColumnName;
				bf.DataField = dc.ColumnName;
				bf.HeaderStyle.ForeColor = System.Drawing.Color.White;
				bf.HeaderStyle.BackColor = System.Drawing.Color.Black;
				bf.SortExpression = dc.ColumnName;
 
				this.GridViewSearchResults.Columns.Add(bf);
			}
		}
 
		string sortExp = (string)ViewState["SortExp"];
		SortDirection sd = (SortDirection)ViewState["SortDir"];
		string sortDir = "";
 
		if (ToggleSort)
		{
			if (sd == SortDirection.Ascending)
			{
				sortDir = " DESC";
				ViewState["SortDir"] = SortDirection.Descending;
			}
			else
			{
				sortDir = " ASC";
				ViewState["SortDir"] = SortDirection.Ascending;
			}
			ds.Tables[0].DefaultView.Sort = sortExp + sortDir;
		}
		else
		{
			if (sd == SortDirection.Ascending)
			{
				sortDir = " ASC";
			}
			else
			{
				sortDir = " DESC";
			}
			ds.Tables[0].DefaultView.Sort = sortExp + sortDir;
		}		
		
		this.GridViewSearchResults.DataSource = ds.Tables[0].DefaultView;
		this.GridViewSearchResults.PageIndex = (int)ViewState["PageIndex"];	
		ViewState["DataStore"] = ds;
		this.GridViewSearchResults.DataBind();
	}
		
 
	protected void GridViewSearchResults_RowDataBound( object sender, GridViewRowEventArgs e)
	{
		//ADD CHECKBOX TO HEADER ROW (TO SUPPORT "CHECK ALL" FUNCTIONALITY)
		if (e.Row.RowType == DataControlRowType.Header)
		{
			try
			{
				CheckBox cb = new CheckBox();
				cb.Checked = false;
 
				if (HiddenField2.Value == "true")
				{
					cb.Checked = true;
				}
 
				cb.ID = "newchecked";
				cb.Attributes.Add("onclick", "CheckAllClicked(this)");
				TableCell tc = new TableCell();
 
				tc.ID = "tc";
				tc.BackColor = System.Drawing.Color.Black;
				tc.Style.Add("border-bottom-style", "none");
				e.Row.Cells.AddAt(0, tc);
				e.Row.Cells[0].Controls.Add(cb);
				e.Row.ToolTip = "header";
			}
			catch (Exception ee)
			{
				System.Diagnostics.Debug.WriteLine(ee.ToString());
			}
		}
 
 
 
		//ADD TOOLTIP (DATA KEY NAMES) TO CHECKBOX FOR USE LATER WHILE GATHERING CHECK BOX STATE
		if (e.Row.RowType == DataControlRowType.DataRow)
		{
			string[] arrIDs = this.HiddenField1.Value.Split(new char[] { '|' });
			CheckBox cb = (CheckBox)e.Row.Cells[0].Controls[0];
			cb.Enabled = true;
			string ID = this.GridViewSearchResults.DataKeys[e.Row.RowIndex].Value.ToString();
			cb.ToolTip = this.GridViewSearchResults.DataKeyNames[0].ToString();
			if (Array.IndexOf(arrIDs, ID) != -1)
			{
				cb.Checked = true;
			}
		}
 
 
		//BUILD CUSTOM PAGER
		if (e.Row.RowType == DataControlRowType.Pager)
		{
			DataSet ds = new DataSet();
 
			ds = (DataSet)ViewState["DataStore"];
 
			if (ds.Tables[0].Rows.Count > 0)
			{
				int recordcount = ds.Tables[0].Rows.Count;
				int pagecount = recordcount / this.GridViewSearchResults.PageSize;
 
				for (int i = 0; i <= pagecount; i++)
				{
					Button pagerBtn = new Button();
					
					pagerBtn.Attributes.Add("onclick", "RespondToPagerClick(this)");
					pagerBtn.ID = "pagerBtn" + i.ToString();
 
					pagerBtn.Text = (i + 1).ToString();
 
 
					if (ViewState["PageIndex"] != null)
					{
						if (i == (int)ViewState["PageIndex"])
						{
							pagerBtn.Enabled = false;
							pagerBtn.Style.Add(HtmlTextWriterStyle.BorderColor, "Red");
						}
						else
						{
							pagerBtn.Enabled = true;
						}
					}
 
					PlaceHolder ph = (PlaceHolder)e.Row.FindControl("phPager");
 
					Label countItems = (Label)e.Row.FindControl("LabelTotalWorkItems");
 
					countItems.Text = ("(" + recordcount.ToString() + " total results)");
 
					ph.Controls.Add(pagerBtn);
				}
			}
		}
	}
		
 
	protected void GridViewSearchResults_Sorting( object sender, GridViewSortEventArgs e )
	{
		ViewState["SortExp"] = e.SortExpression;
		GatherCheckBoxStatus(false, false);
		BuildGridView(true);		
	}
}
 
 
 
 
 
 
 
 
MARKUP:
 
<%@ Control Language="C#" EnableViewState="true" AutoEventWireup="true" CodeFile="CO2SearchResults.ascx.cs" Inherits="UserControls_Workflow_CO2SearchResults" %>
 
 
 
<%--//Most stable version to date.  CHECK ALL functionality is working
//small bug with first row now getting checked--%>
 
 
<script type="text/javascript">
 
				function SortValid()
        {					
						__doPostBack(1,'SORTVALID');              
        }
        
        
        function RespondToPagerClick(current)
        {					
						__doPostBack(current.value,'PAGERBUTTON');              
        }
        
        function CheckAllClicked(current)
        {					
						__doPostBack(current.checked,'CHECKALL');              
        }
        
        
        function CheckBoxChecked(current)
        {					
						theForm.somesecret.value = current.now_checked;             												
        }    
</script>
 
<style type="text/css">
	.gridview td  
	{
		border-bottom: solid 2px black; 
		padding:10px 10px 10px 10px;
	}
</style> 
 
<asp:GridView
	CssClass="gridview" 
	ID="GridViewSearchResults" 
	runat="server" 
	AllowPaging="True" 	
	AllowSorting="true"
	GridLines="None"	
	Height="400px" 	
	OnRowDataBound="GridViewSearchResults_RowDataBound"
	EmptyDataText="No Matching Records Found" 
	AutoGenerateColumns="False" 
	Width="100%" 
	onsorting="GridViewSearchResults_Sorting" >
	
	<PagerTemplate>		
	<div style="text-align:right;">
		<table id="table1" runat="server">
			<tr>
				<td style="border-bottom-style:none;">
					<asp:Label ID="Label2" runat="server" Text="Results:  "></asp:Label>
				</td>
				<td style="border-bottom-style:none;">
					<asp:PlaceHolder ID="phPager" runat="server"></asp:PlaceHolder>
				</td>
				<td style="border-bottom-style:none;">
					<asp:Label ID="LabelTotalWorkItems" runat="server" Text="0 items found"></asp:Label>
				</td>
			</tr>
		</table>	
		</div>
	</PagerTemplate>	
</asp:GridView>
<asp:HiddenField ID="HiddenField1" runat="server" />
<asp:HiddenField ID="HiddenField2" runat="server" Value="false" />
Attachments:
 
now.jpg (131 KB) (File Type Details) 
NOW
NOW
 
 
later.jpg (130 KB) (File Type Details) 
WHAT I WOULD LIKE
WHAT I WOULD LIKE
 
 
Keywords: Need some help with formatting GridView
Title
1 Formatting a GridView
2 truncated gridview
3 Make screenshot of a webpage.
4 Gridview date format!!!!
5 Gridview (data) will not dispaly, or i…
6 screenshot/printscreen
 
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About this solution

Zone: Programming for ASP.NET
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Solution Provided By: Snarf0001
Participating Experts: 2
Solution Grade: A
 
 
 
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