动态改变一下TEXTBOX属性

Question

如何在.NET中动态改变一下TEXTBOX的属性(可用Enabled),比如说我有N个TEXTBOX(TXT_1,TXT_2.TXT_3......TXT_N).我想用一个循环来设置它们的属性.

Answer 1

小露一手:
TextBox txt_1;
txt_1=(System.Web.UI.WebControls.TextBox)FindControl("TextBox1");
txt_1.Enabled = false;

Answer 2

for (int   i   =  0;  i <  Page.Controls[1].Controls.Count;  i++)   
{
if(Page.Controls[1].Controls[i].GetType().ToString()=="System.Web.UI.WebControls.Button")
{
((Button)Page.Controls[1].Controls[i]).Text="我是BUTTON";
}
}

Answer 3

楼上的就可以，当然可以根据Button的Name属性进行判断，有控制的设定Enable

Answer 4

oControl参数可以为Page                private  void FindTextBox(System.Web.UI.Control oControl,string ControlID,bool ReadOnly)
                {
                        if(oControl.HasControls())
                        {
                                foreach (System.Web.UI.Control oChildControl in oControl.Controls)
                                {
                                        if( (oChildControl.ID==ControlID)&&(oChildControl is System.Web.UI.WebControls.TextBox))
                                        {
                                                ((System.Web.UI.WebControls.TextBox)oChildControl).ReadOnly=ReadOnly;
                                                ((System.Web.UI.WebControls.TextBox)oChildControl).BackColor=Color.LightGray;
                                                return;
                                        }

                                        FindTextBox(oChildControl,ControlID,ReadOnly);
                                }
                        }
                }
private  void FindTextBox(System.Web.UI.Control oControl,string ControlID,string ControlValue,bool ReadOnly)
{
if(oControl.HasControls())
{
foreach (System.Web.UI.Control oChildControl in oControl.Controls)
{
if( (oChildControl.ID==ControlID)&&(oChildControl is System.Web.UI.WebControls.TextBox))
{
((System.Web.UI.WebControls.TextBox)oChildControl).ReadOnly=ReadOnly;
((System.Web.UI.WebControls.TextBox)oChildControl).Text=ControlValue;
((System.Web.UI.WebControls.TextBox)oChildControl).BackColor=Color.LightGray;
return;
}

FindTextBox(oChildControl,ControlID,ControlValue,ReadOnly);
}
}
}
                private  void FindTextBox(System.Web.UI.Control oControl,string ControlID,string ControlValue)
                {
                        if(oControl.HasControls())
                        {
                                foreach (System.Web.UI.Control oChildControl in oControl.Controls)
                                {
                                        if( (oChildControl.ID==ControlID)&&(oChildControl is System.Web.UI.WebControls.TextBox))
                                        {
                                                ((System.Web.UI.WebControls.TextBox)oChildControl).Text=ControlValue;
                                                return;
                                        }

                                        FindTextBox(oChildControl,ControlID,ControlValue);
                                }
                        }
                }
private  void FindTextBox_D(System.Web.UI.Control oControl,string ControlID,bool ReadOnly)
{
if(oControl.HasControls())
{
foreach (System.Web.UI.Control oChildControl in oControl.Controls)
{
if( (oChildControl.ID==ControlID)&&(oChildControl is System.Web.UI.WebControls.TextBox))
{
((System.Web.UI.WebControls.TextBox)oChildControl).ReadOnly=ReadOnly;
((System.Web.UI.WebControls.TextBox)oChildControl).BackColor=Color.White;
return;
}

FindTextBox_D(oChildControl,ControlID,ReadOnly);
}
}
}
                private  void FindTextBox(System.Web.UI.Control oControl,DataRow myRow,string S1,int L1,string S2,int L2)
                {
                        if(oControl.HasControls())
                        {
                                foreach (System.Web.UI.Control oChildControl in oControl.Controls)
                                {
                                        if( (oChildControl.ID!=null)&&(oChildControl.ID!="")&&((oChildControl.ID.Substring(0,L1)==S1)||(oChildControl.ID.Substring(0,L2)==S2))&&(oChildControl is System.Web.UI.WebControls.TextBox))
                                        {
                                                if((myRow[oChildControl.ID].ToString().Length>3)&&(myRow[oChildControl.ID].ToString().Substring(myRow[oChildControl.ID].ToString().Length-3,3)==".00"))
                                                {
                                                        ((System.Web.UI.WebControls.TextBox)oChildControl).Text=myRow[oChildControl.ID].ToString().Substring(0,myRow[oChildControl.ID].ToString().Length-3);                                                       
                                                }else
                                                {
                                                        ((System.Web.UI.WebControls.TextBox)oChildControl).Text=myRow[oChildControl.ID].ToString();                                                        
                                                }                                                return;
                                        }

                                        FindTextBox(oChildControl,myRow,S1,L1,S2,L2);
                                }
                        }
                }