winform TabControl選項卡不可用
阿新 • • 發佈:2019-01-09
頁面載入,第二個選項卡不可用,頁面上進行操作後單擊按鈕才可跳轉到下一個選項卡,並且不可返回上一個選項卡(這是什麼需求我滴龜龜)
由於winform不自帶某個TabPage不可用的屬性,所以模擬了一下這個功能(客戶需求沒辦法)。
或者也可以假裝兩個按鈕再加上Panel的
private void DlgRVTaskRun_Load(object sender, EventArgs e) { //繪製選項卡 tcContainer.DrawMode = TabDrawMode.OwnerDrawFixed; tcContainer.DrawItem += tcContainer_DrawItem; } /// <summary> /// [儲存]按鈕單擊事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnSave_Click(object sender, EventArgs e) { tcContainer.Tag = true; tcContainer.SelectedTab = tcContainer.TabPages[1]; } /// <summary> /// 選項卡[選擇]事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tcContainer_Selecting(object sender, TabControlCancelEventArgs e) { if ((tcContainer.SelectedTab.Name == tcContainer.TabPages[1].Name && !(tcContainer.Tag is bool)) || tcContainer.SelectedTab.Name == tcContainer.TabPages[0].Name ) { e.Cancel = true; } } /// <summary> /// 繪製選項卡 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void tcContainer_DrawItem(object sender, DrawItemEventArgs e) { Rectangle recLeft = tcContainer.GetTabRect(0); Rectangle recRight = tcContainer.GetTabRect(1); //標籤背景填充顏色 SolidBrush BackBrush = new SolidBrush(Color.LightGray); //標籤文字填充顏色 SolidBrush FrontBrush = new SolidBrush(Color.Black); //設定文字對齊方式 StringFormat StringF = new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center }; if (tcContainer.Tag is bool) { e.Graphics.FillRectangle(BackBrush, recLeft); e.Graphics.DrawString(tcContainer.TabPages[0].Text, new Font("微軟雅黑", 10.5F), FrontBrush, recLeft, StringF); e.Graphics.DrawString(tcContainer.TabPages[1].Text, new Font("微軟雅黑", 10.5F), FrontBrush, recRight, StringF); } else { e.Graphics.FillRectangle(BackBrush, recRight); e.Graphics.DrawString(tcContainer.TabPages[0].Text, new Font("微軟雅黑", 10.5F), FrontBrush, recLeft, StringF); e.Graphics.DrawString(tcContainer.TabPages[1].Text, new Font("微軟雅黑", 10.5F), FrontBrush, recRight, StringF); } }