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POchanging the backcolor of a panel changes the backcolor for all panels
 

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  1. POchanging the backcolor of a panel changes the backcolor for all panels
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    <p>I have a custom control, OrderEntryCtl, with a TableLayoutPanel that uses Panels insided of the cells of the first row (call it the header row, the Panels are named HeaderPanel1, HeaderPanel2, etc[8 panels altogether, 1 for each column in row 0 of the TableLayoutPanel]). The BackColor of each Panel is set to blue first. At some point, I want to change the BackColor of each Panel to gray. Here's the problem I am running into: Changing the BackColor of 1 panel actually changes the BackColor of all Panels on all of my OrderEntryCtl's added to the Form. FYI: I'm not creating any of the panels dynamically; they are all created via the designer and the code created by VS is in OrderEntryCtl.Designer.cs</p> <p>So, consider, I have some number of OrderEntryCtl's on my form (these are added programmatically/dynamically at run time by my code, not by the designer). A user interacts with the first OrderEntryCtl (call it OrderEntry1), then clicks a button that's a part of the control. The click event handler for that button needs to turn the 8 HeaderPanel's to gray:</p> <pre><code>HeaderPanel1.BackColor = Color.DarkGray; HeaderPanel2.BackColor = Color.DarkGray; HeaderPanel3.BackColor = Color.DarkGray; //etc </code></pre> <p>I'm expecting only the 8 header Panels to turn gray for OrderEntry1, however, ALL header Panels for ALL OrderEntryCtl's are turning gray. The really odd thing is, I could comment out the last 7 "HeaderPanel#.BackColor = Color.DarkGray;" commands, leaving only HeaderPanel1.BackColor = Color.DarkGray; and this still happens. But, if I add to the event handler</p> <pre><code>HeaderPanel2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; </code></pre> <p>only the border style of panel 2 of OrderEntry1 is affected, which is the expected behavior! How do I get the BackColor property to behave the same as the BorderStyle property for my panels?</p> <p>In response to first comment, I've included the code in the Designer.cs</p> <pre><code>private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1; private System.Windows.Forms.Panel HeaderPanel1; private System.Windows.Forms.Panel HeaderPanel2; private System.Windows.Forms.Panel HeaderPanel3; private System.Windows.Forms.Panel HeaderPanel4; private System.Windows.Forms.Panel HeaderPanel5; private System.Windows.Forms.Panel HeaderPanel6; private System.Windows.Forms.Panel HeaderPanel7; private System.Windows.Forms.Panel HeaderPanel8; this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel(); this.HeaderPanel1 = new System.Windows.Forms.Panel(); this.HeaderPanel2 = new System.Windows.Forms.Panel(); this.HeaderPanel3 = new System.Windows.Forms.Panel(); this.HeaderPanel4 = new System.Windows.Forms.Panel(); this.HeaderPanel5 = new System.Windows.Forms.Panel(); this.HeaderPanel6 = new System.Windows.Forms.Panel(); this.HeaderPanel7 = new System.Windows.Forms.Panel(); this.HeaderPanel8 = new System.Windows.Forms.Panel(); this.tableLayoutPanel1.SuspendLayout(); this.HeaderPanel1.SuspendLayout(); this.HeaderPanel2.SuspendLayout(); this.HeaderPanel3.SuspendLayout(); this.HeaderPanel4.SuspendLayout(); this.HeaderPanel5.SuspendLayout(); this.HeaderPanel6.SuspendLayout(); this.HeaderPanel7.SuspendLayout(); this.HeaderPanel8.SuspendLayout(); // // tableLayoutPanel1 // this.tableLayoutPanel1.BackColor = System.Drawing.Color.White; this.tableLayoutPanel1.ColumnCount = 8; this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 24F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 16F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 26F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 24F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 15F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 15F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 12F)); this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 18F)); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel1, 0, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel2, 1, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel3, 2, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel4, 3, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel5, 4, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel6, 5, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel7, 6, 0); this.tableLayoutPanel1.Controls.Add(this.HeaderPanel8, 7, 0); this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill; this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0); this.tableLayoutPanel1.Margin = new System.Windows.Forms.Padding(0); this.tableLayoutPanel1.Name = "tableLayoutPanel1"; this.tableLayoutPanel1.RowCount = 2; this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F)); this.tableLayoutPanel1.Size = new System.Drawing.Size(944, 90); this.tableLayoutPanel1.TabIndex = 0; // // HeaderPanel1 // this.HeaderPanel1.BackColor = global::WdRx.Fulfillment.Dispensing.Workstation.Properties.Settings.Default.OrderEntryHeader; this.HeaderPanel1.Controls.Add(this.Lbl_Header1); this.HeaderPanel1.DataBindings.Add(new System.Windows.Forms.Binding("BackColor", global::WdRx.Fulfillment.Dispensing.Workstation.Properties.Settings.Default, "OrderEntryHeader", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged)); this.HeaderPanel1.Dock = System.Windows.Forms.DockStyle.Fill; this.HeaderPanel1.Location = new System.Drawing.Point(675, 0); this.HeaderPanel1.Margin = new System.Windows.Forms.Padding(0); this.HeaderPanel1.Name = "HeaderPanel1"; this.HeaderPanel1.Size = new System.Drawing.Size(107, 45); this.HeaderPanel1.TabIndex = 10; </code></pre> <p>Ok, after reviewing the above, I realize my problem is that I am associating the BackColor property to a color defined in my config file, and I'm doing this for all of the panels. The binding is for the property changed event, so change the property on 1 panel, updates all panels.</p> <p>So, I'm now taking suggestions on how to still fetch my initial color from my config file, but without binding the OnPropertyChange event ? ? ? Anyone ?</p>
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    1. PTQuestion
    1. USPaul Rivera
    1. USPaul Rivera
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      1. VTUpMod
    1. CO"The really odd thing is, I could comment out the last 7 "HeaderPanel#.BackColor = Color.DarkGray;" commands, leaving only HeaderPanel1.BackColor = Color.DarkGray; and this still happens." Sounds like all your other panels are actually **contained** within the first one. You sure you didn't accidentally "nest" them when placing them on the form?
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      1. POchanging the backcolor of a panel changes the backcolor for all panels
      1. USIdle_Mind
    2. COJust don't use (DataBindings), use (ApplicationSettings) in the Property window.
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      1. POchanging the backcolor of a panel changes the backcolor for all panels
      1. USHans Passant
 

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