关于动态创建控件,第二次赋值不能显示解决办法

来源：互联网发布：mac怎么阻止弹出网页编辑：程序博客网时间：2024/05/23 01:15

动态创建控件并显示在窗体上的panel上

Label[] lb; TextBox[] txtInput; lb = null; txtInput = null; lb = new Label[ds.Tables[0].Rows.Count]; txtInput = new TextBox[ds.Tables[0].Rows.Count]; foreach (Control ct in this.panel_Button.Controls) { try { string strConvert= ((TextBox)ct).Text ; ct.Text=""; } catch { } } for (int k = 0; k < ds.Tables[0].Rows.Count; k++) { int x = GetColIndex(k + 1, 3);//列 int y = GetRowIndex(k + 1, 3);//行 lb[k] = new Label(); lb[k].AutoSize = true; lb[k].Name = "lb" + ds.Tables[0].Rows[k]["WorkItemID"].ToString().Trim(); lb[k].Left = (x - 1) * 300 + 10; lb[k].Top = y * 30 + 5; lb[k].Parent = this.panel_Button; lb[k].Tag = Convert.ToInt16(ds.Tables[0].Rows[k]["WorkItemID"].ToString()); lb[k].Text = ds.Tables[0].Rows[k]["WorkItemDes"].ToString().Trim(); this.panel_Button.Controls.Add(lb[k]); txtInput[k] = new TextBox(); txtInput[k].Name = "txtBox" + ds.Tables[0].Rows[k]["WorkItemID"].ToString().Trim(); txtInput[k].Left = (x - 1) * 300 + 10 + 110; txtInput[k].Top = y * 30 + 5 - 2; txtInput[k].Width = 150; txtInput[k].Parent = this.panel_Button; txtInput[k].Tag = Convert.ToInt16(ds.Tables[0].Rows[k]["WorkItemID"].ToString()) * 3; txtInput[k].Text = ""; this.panel_Button.Controls.Add(txtInput[k]); this.panel_Button.Refresh(); txtInput[k].Refresh(); } tsbSelectDepartMent.Enabled = true;

第一次能正常赋值并显示所赋值

第二次却不能正常赋值并显示所赋值

解决办法:

foreach (Control cl in this.panel_Button.Controls)
                {
                    if (cl.GetType() == typeof(System.Windows.Forms.TextBox))
                    {
                        if (cl.Name == "txtBox08")//根据控件名称查找并赋值
                        {
                            cl.Text =frm.SelectDpID ;
                        }
                    }
                }