ASPxListBox 项目转为字符串

发布于 2024-12-24 16:34:45 字数 534 浏览 2 评论 0原文

这应该很容易，但我没能做到这一点。我打开了 ASPxListBox 的复选框选项。所以我想在一个字符串中选择项目。像这样：

项目1，项目4，项目9

等。

请注意，它们应该被“,”分隔，并删除最后一个逗号。

尝试过类似的方法，但行不通：（

StringBuilder sb = new StringBuilder();
for (int i = 0; i < lb1.Items.Count; i++)
    sb.Append(lb1.Items[i].Selected ? lb1.Items[i].Text + "," : "");
TextBox1.Text = sb.ToString();

我之前问过类似的问题，但由于我没有提到这是 ASPxListBox，所以我得到的建议不起作用。

所以，这是 Visual Studio 2008、Devexpress 9.3 和 .NET Framework 3.5

谢谢。

原文

This should be easy, but I'm failing to do this. I have ASPxListBox with checkbox option turned on. So I'd like to have selected items in one string. Like this:

item1,item4,item9

and so on.

Notice that they should be divided by "," and last comma deleted.

Tried something like this, but won't work:

StringBuilder sb = new StringBuilder();
for (int i = 0; i < lb1.Items.Count; i++)
    sb.Append(lb1.Items[i].Selected ? lb1.Items[i].Text + "," : "");
TextBox1.Text = sb.ToString();

(I asked similar question before, but as I havent mention that this is ASPxListBox, suggestions I got wont works.

So, this is Visual Studio 2008, Devexpress 9.3 and .NET framework 3.5

Thanks.

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余生一个溪 2024-12-31 16:34:45

我不熟悉 ASPxListBox，但是您不能循环遍历然后通过获取子字符串删除最后一个逗号吗？

 string csvList = sb.ToString();
 TextBox1.Text = csvList.Substring(0, csvList.LastIndexOf(','));

I'm not familiar with ASPxListBox, but couldn't you just loop through and then remove the last comma by getting the substring?

 string csvList = sb.ToString();
 TextBox1.Text = csvList.Substring(0, csvList.LastIndexOf(','));

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烟花肆意 2024-12-31 16:34:45

@keyboardP：我认为你的解决方案相当不错，所以+1。

此外，您可以在 DevExpress 代码中心找到类似的解决方案：

http://www .devexpress.com/Support/Center/e/E2625.aspx

ASPxListBox listBox = instance;

string selectedItemsAsString = string.Empty;

foreach (ListEditItem item in listBox.SelectedItems)
    selectedItemsAsString += item.Value + ";";

if (selectedItemsAsString.Length > 0)
    selectedItemsAsString = selectedItemsAsString.Trim(new char[] { ';' });

@keyboardP: your solution is rather ok on my mind, so +1.

Moreover, you can find a similar solution in the DevExpress code central:

http://www.devexpress.com/Support/Center/e/E2625.aspx

ASPxListBox listBox = instance;

string selectedItemsAsString = string.Empty;

foreach (ListEditItem item in listBox.SelectedItems)
    selectedItemsAsString += item.Value + ";";

if (selectedItemsAsString.Length > 0)
    selectedItemsAsString = selectedItemsAsString.Trim(new char[] { ';' });

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余罪 2024-12-31 16:34:45

我不熟悉 aspxlistbox 但你可以写这样的东西 -

    String Finaloutput="";
    for (int i = 0; i < lb1.Items.Count; i++)
    {
       string output= lb1.Items[i].Selected ? lb1.Items[i].Text + "," : "";
       Finaloutput += output;
    }
    TextBox1.Text = Finaloutput.TrimEnd(',');

I am not familiar with aspxlistbox but You can write something like this-

    String Finaloutput="";
    for (int i = 0; i < lb1.Items.Count; i++)
    {
       string output= lb1.Items[i].Selected ? lb1.Items[i].Text + "," : "";
       Finaloutput += output;
    }
    TextBox1.Text = Finaloutput.TrimEnd(',');

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