Datagrids on tab pages resizing bug
From: wjousts (wjousts_at_discussions.microsoft.com)
Date: 03/04/05
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Date: Fri, 4 Mar 2005 10:23:02 -0800
Hi,
I've noticed a problem with datagrids when they are on tab pages. For
example, if you create a windows application, add a tab control (set to dock
fill) to the main form, then add two tab pages to the tab control. On each
tab page add a datagrid with it's dock set to fill. Give the datagrids some
data to display and run the program.
When the program starts reduce the size of the form until the on the first
tab page is forced to display scroll bars. Now switch to the other tab page,
it also has scroll bars and everything is fine. Now expand the form again and
the current datagrid should size with the form, but now if you switch back to
the first tab page the datagrid has resized correctly but the scroll bars are
still stuck in the old position right across your datagrid!
Has anybody else seen this problem and know of a work around?
Thanks,
WJ
Here's some code that reproduces the problem:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace Datagrid_bug
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.TabControl tabControl1;
private System.Windows.Forms.TabPage tabPage1;
private System.Windows.Forms.TabPage tabPage2;
private System.Windows.Forms.DataGrid dataGrid1;
private System.Windows.Forms.DataGrid dataGrid2;
private System.Data.DataSet dataSet1;
private System.Data.DataTable dataTable1;
private System.Data.DataColumn dataColumn1;
private System.Data.DataColumn dataColumn2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
for (int i=0; i<50; i++)
{
DataRow dr = dataTable1.NewRow();
dr[dataColumn1] = i;
dr[dataColumn2] = i*i;
dataTable1.Rows.Add(dr);
}
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.tabControl1 = new System.Windows.Forms.TabControl();
this.tabPage1 = new System.Windows.Forms.TabPage();
this.tabPage2 = new System.Windows.Forms.TabPage();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.dataGrid2 = new System.Windows.Forms.DataGrid();
this.dataSet1 = new System.Data.DataSet();
this.dataTable1 = new System.Data.DataTable();
this.dataColumn1 = new System.Data.DataColumn();
this.dataColumn2 = new System.Data.DataColumn();
this.tabControl1.SuspendLayout();
this.tabPage1.SuspendLayout();
this.tabPage2.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.dataGrid2)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.dataTable1)).BeginInit();
this.SuspendLayout();
//
// tabControl1
//
this.tabControl1.Controls.Add(this.tabPage1);
this.tabControl1.Controls.Add(this.tabPage2);
this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tabControl1.Location = new System.Drawing.Point(0, 0);
this.tabControl1.Name = "tabControl1";
this.tabControl1.SelectedIndex = 0;
this.tabControl1.Size = new System.Drawing.Size(504, 342);
this.tabControl1.TabIndex = 0;
//
// tabPage1
//
this.tabPage1.Controls.Add(this.dataGrid1);
this.tabPage1.Location = new System.Drawing.Point(4, 22);
this.tabPage1.Name = "tabPage1";
this.tabPage1.Size = new System.Drawing.Size(496, 316);
this.tabPage1.TabIndex = 0;
this.tabPage1.Text = "tabPage1";
//
// tabPage2
//
this.tabPage2.Controls.Add(this.dataGrid2);
this.tabPage2.Location = new System.Drawing.Point(4, 22);
this.tabPage2.Name = "tabPage2";
this.tabPage2.Size = new System.Drawing.Size(496, 316);
this.tabPage2.TabIndex = 1;
this.tabPage2.Text = "tabPage2";
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.DataSource = this.dataTable1;
this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(0, 0);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(496, 316);
this.dataGrid1.TabIndex = 0;
//
// dataGrid2
//
this.dataGrid2.DataMember = "";
this.dataGrid2.DataSource = this.dataTable1;
this.dataGrid2.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGrid2.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid2.Location = new System.Drawing.Point(0, 0);
this.dataGrid2.Name = "dataGrid2";
this.dataGrid2.Size = new System.Drawing.Size(496, 316);
this.dataGrid2.TabIndex = 0;
//
// dataSet1
//
this.dataSet1.DataSetName = "NewDataSet";
this.dataSet1.Locale = new System.Globalization.CultureInfo("en-US");
this.dataSet1.Tables.AddRange(new System.Data.DataTable[] {
this.dataTable1});
//
// dataTable1
//
this.dataTable1.Columns.AddRange(new System.Data.DataColumn[] {
this.dataColumn1,
this.dataColumn2});
this.dataTable1.TableName = "Table1";
//
// dataColumn1
//
this.dataColumn1.ColumnName = "Column1";
//
// dataColumn2
//
this.dataColumn2.ColumnName = "Column2";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(504, 342);
this.Controls.Add(this.tabControl1);
this.Name = "Form1";
this.Text = "Form1";
this.tabControl1.ResumeLayout(false);
this.tabPage1.ResumeLayout(false);
this.tabPage2.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.dataGrid2)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.dataSet1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.dataTable1)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
}
}
- Next message: D Witherspoon: "Using a structure as a property in a class gives error when accessing properties of structure"
- Previous message: Robin Sanner: "Re: Problem positioning controls within a panel with autoscroll=true"
- Messages sorted by: [ date ] [ thread ]
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