修复asp.net中文本框的大小 [英] fix the size of textbox in asp.net

问题描述

<asp:TextBox ID=txtComments runat="server" BorderColor="Gray" 
           BorderStyle="Solid" BorderWidth="1px" CausesValidation="true" Wrap="true"
           MaxLength="100"
           TextMode="MultiLine" 
           Width="350px">

在aspx.cs文件中

in aspx.cs file

public int MaxLength
   {
       get { return txtComments.MaxLength; }
       set { txtComments.MaxLength = value; }
   }
   public void wordCount()
   {
       txtCount.Text = txtComments.MaxLength.ToString();
       txtComments.Attributes.Add("onKeyUp", "javascript:document.getElementById(''" + txtCount.ClientID + "'').setAttribute(''value'', (" + txtComments.MaxLength + " - parseInt(document.getElementById(''" + txtComments.ClientID + "'').getAttribute(''value'').length)));");

   }

我正在我的应用程序中编写以下代码..c有人能告诉我如何将光标固定在文本框中最后一个字符的末尾吗??

预先谢谢你.

[edit]添加了代码块-OriginalGriff [/edit]

i was writing following code in my application.. ccan anyone tell me that how can i fixed the cursor at the end of last character in textbox...?

thank you in advance.

[edit]Code blocks added - OriginalGriff[/edit]

推荐答案

这似乎总是一个好主意，但请确保您确实想要这个，因为这意味着用户只能使用退格键或键入键，如果他们在某个时候打错了字并不得不删除已经完成的所有操作，那将是很痛苦的.这也使用户无法突出显示任何文本并进行复制，这在很多情况下是无济于事的.但是，

如果您确实想执行此操作，则需要在以下事件上触发的一小段javascript:

This always seems like it ought to be a good idea but make sure you really want this because it means the user can only ever use backspace or type which if they make a typo at some point and have to delete all of what they have already done it can be a pain. It also stops the user being able to highlight any of the text and copy it which is very unhelpful in a lot of cases. However,

If you realy want to do this you will need a short bit of javascript that fires on the following events:

focus()
onKeyUp() //(after all other code)
onMouseUp()

并将光标设置到末尾只需执行以下操作:

this.value = this.value;在javascript事件中，因为这会将(框内的)文本设置为自身，从而迫使光标重置到末尾.

and to set the cursor to the end simply do:

this.value = this.value; in the javascript event as this will set the text (of the box) to itself thus forcing the cursor to be reset to the end.

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