C ＃ set TextBox control not editable

Preface

generally speaking ,Textbox There are two properties in which you can set to prevent editing , This is the most basic knowledge , It is also the first two methods I want to propose . The latter two methods are actually one , But it can be applied in different environments .

One 、ReadOnly attribute

Set this way ,Textbox Control restricts input , But you can read existing text , The style is also similar to that of normal use Textbox Agreement .

1、 Set... At the front end Readonly by true, The style is as follows ：

<asp:TextBox ID=“TextBox1” runat=“server” ReadOnly=“true” Text=“ test ”></asp:TextBox>
2、 Set up... In the background Readonly by true, The style is as follows ：

TextBox1.ReadOnly = true;
Two 、Enabled attribute

Setting this property will Textbox Control becomes grayed out , Do not click .

1、 Set... At the front end Enabled by false, The style is as follows ：

<asp:TextBox ID=“TextBox1” runat=“server” Enabled=“false” Text=“ test ”></asp:TextBox>
2、 Set up... In the background Readonly by true, The style is as follows ：

TextBox1.Enabled= false;
3、 ... and 、onfocus Method

Set up JS Events ,onfocus Event refers to the cursor moving to this control ,this.blur() Yes move the cursor away , In this way, we can achieve the purpose of editing , The code is as follows .

<asp:TextBox ID=“TextBox1” runat=“server” Text=“ test ” οnfοcus=“this.blur();”></asp:TextBox>
Four 、 Set up TextModel style

Use CSS Code , Set up TextModel attribute . Combine with the third , The advantage of this setting is that it can also achieve the purpose of non editing in some browsers , But it can guarantee the original "X" Sign exists , So you can also realize the purpose of clarifying the content of the control . Tested , stay IE Browser does not support this function , but Google The browser can .

The front-end code is as follows ：

<asp:TextBox ID=“TextBox1” runat=“server” Text=“ test ” TextModel=“search” οnfοcus=“this.blur();”></asp:TextBox>
Css The style is as follows ：