在列表框中显示在100附近的Vb6 1000中 [英] In List Box In Vb6 1000 showing next to 100

问题描述

在列表框1000中显示100 ...我可以解决吗？

解决方案

继续OriginalGriff的解决方案和OP后续评论...



如果将字段id的类型设置为adBigInt并确保记录集在该列上排序（ rs.Sort = id）然后它应该工作。确保你的ListBox Sorted属性设置为False（仅限设计时间）。



以下是一个愚蠢的小例子，我敲了一下来证明这个方法......

 Dim rs As New ADODB.Recordset 
 rs.Fields.AppendCol1，adBigInt 
 rs.Fields .AppendCol2，adVarChar，30 
 rs.Open 
 rs.AddNew 
 rs.Fields（Col1）= 100 
 rs.Fields（Col2）= text 100
 
 rs.AddNew 
 rs.Fields（Col1）= 101 
 rs.Fields（Col2）=text 101
 
 rs.AddNew 
 rs.Fields（Col1）= 1 
 rs.Fields（Col2）=text 1
 
 rs.AddNew 
 rs.Fields（Col1）= 2 
 rs.Fields（Col2）=text 2
 rs.AddNew 
 rs.Fields（Col1）= 1000 
 rs.Fields（Col2）=text 1000
 rs.AddNew 
 rs.Fields（Col1）= 200 
 rs.Fields（Col2 ）=text 200
 rs.Sort =Col1
 rs.MoveFirst 
 Do while not rs.EOF 
 Me.List1.AddItem CStr（rs（Col1） ））++ rs（Col2）
 rs.MoveNext 
 Loop 
 

结果输出

 1 text 1 
 2 text 2 
 100 text 100 
 101 text 101 
 200 text 200 
 1000 text 1000 

OP正在使用我不熟悉的工具但似乎更改数据库中列的数据类型不是一个选项（请注意其他读者 - 始终为您正在存储的数据选择适当的数据类型）。所以相反你可以尝试这样的东西（NB - 在我目前的位置我没有VB6所以下面的代码是完全未经测试的）

 Dim rsSort As New ADODB.Recordset 
设置rsSort = rs.Clone（adLockUnspecified）
 rsSort.Fields.AppendSorter，adBigInt 
 rsSort.Open 
 rsSort.MoveFirst 
 Do while not rsSort.EOF 
 rsSort.Fields（Sorter）= val（rs.Fields（id）
循环
 rsSort.Sort =Sorter

然后使用rsSort填充ListBox。请记住在设计时确保List1.Sorted = False并整理新的记录集。如果你尝试这种方法并遇到问题，请尝试google forDisconnectedClone



或者在填充ListBox时将id格式化为左边的零填充，例如

 List1.AddItem Format 

（Val（rs.Fields（id）），String（5，0））&& rs.Fields（name）

这是最简洁的演示（无论如何）意味着名字将排在第一位e显示）。如果你使用这个方法，那么记得设置List1.Sorted = True

简单：你正在使用字符串，所以排序顺序是基于字符的：第一个区别用字符控制排序顺序。

所以，它是：

 1 
 10 
 11 
 12 
 ... 
 19 
 2 
 20 
 21 
 ... 

100出现同样的问题和$



如果没有你的代码，我无法建议修复，但你需要查看加载ListBox的位置，并使用数值而不是字符串。

in list box 1000 showing next to 100..how can i solve that ??

解决方案

Further to OriginalGriff's solution and the OPs subsequent comments ...

If you set the type for field "id" to adBigInt and make sure that the recordset is sorted on that column (rs.Sort="id") then it should work. Make sure your ListBox Sorted property is set to False (design time only).

The following is a silly little example that I knocked up to prove this method ...

Dim rs As New ADODB.Recordset
rs.Fields.Append "Col1", adBigInt
rs.Fields.Append "Col2", adVarChar, 30
rs.Open
rs.AddNew
rs.Fields("Col1") = 100
rs.Fields("Col2") = "text 100"

rs.AddNew
rs.Fields("Col1") = 101
rs.Fields("Col2") = "text 101"

rs.AddNew
rs.Fields("Col1") = 1
rs.Fields("Col2") = "text 1"

rs.AddNew
rs.Fields("Col1") = 2
rs.Fields("Col2") = "text 2"
rs.AddNew
rs.Fields("Col1") = 1000
rs.Fields("Col2") = "text 1000"
rs.AddNew
rs.Fields("Col1") = 200
rs.Fields("Col2") = "text 200"
rs.Sort = "Col1"
rs.MoveFirst
Do While Not rs.EOF
    Me.List1.AddItem CStr(rs("Col1")) + " " + rs("Col2")
    rs.MoveNext
Loop

results in output

1 text 1
2 text 2
100 text 100
101 text 101
200 text 200
1000 text 1000

[EDIT] OP is using a tool I'm not familiar with but it would seem that changing the data type of the column on the database is not an option (note to other readers - always choose the appropriate data type for the data you are storing). So instead you could try something like this (NB - At my current location I do not have VB6 so the following code is completely untested)

Dim rsSort As New ADODB.Recordset
Set rsSort = rs.Clone(adLockUnspecified)
rsSort.Fields.Append "Sorter", adBigInt
rsSort.Open
rsSort.MoveFirst
Do While Not rsSort.EOF
	rsSort.Fields("Sorter") = val(rs.Fields("id")
Loop
rsSort.Sort="Sorter"

and then use rsSort to populate the ListBox. Remember to ensure that List1.Sorted = False at Design Time and to tidy up new recordset. If you try this method and you get problems try google for "DisconnectedClone"

Alternatively format the id to pad left with zeroes as the ListBox is being populated e.g.

List1.AddItem Format

(Val(rs.Fields("id")), String(5, "0")) & " " & rs.Fields("name")

which is far neater presentation anyway (means the names will be lined up on the display). If you use this method then remember to set List1.Sorted=True

Simple: you are using strings, so the sort order is character based: the first difference in characters controls the sort order.
So, it goes:

1
10
11
12
...
19
2
20
21
...

And the same problem occurs with 100 and 1000

Without your code I can't suggest a fix, but you need to look at where you load the ListBox, and use numeric values instead of string.

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