如何更改gridview中列的顺序 [英] How to Change order of columns in gridview

问题描述

我正在使用gridView。我有一些自动生成的列，有些是由我生成的。现在首先显示我生成的列，然后显示自动生成的列。我想首先显示自动生成的列然后显示我生成的列。



IMP注1： - 我不能使用它（例如）： -

< asp：BoundField HeaderText =  我的第一列 DataField =   myField1 /> 

注2：列数和列名是动态的

解决方案

试试这个

 datagridview.Columns [ColumnName]。DisplayIndex = 1; //将索引替换为您希望显示列的索引。

动态更改gridview模板列顺序。

1.遍历GridView对象的所有颜色并将它们存储在集合中。

列表<   DataControlField  >  coloumns = new List <   DataControlField  < span class =code-keyword>> （）; 
 foreach（gv.Columns中的DataControlField coloumn）
 {
 coloumns.Add（coloumn）; 
} 

2.在集合中重新排列coloumn-objects。

//重新排列coloumns'集合..



3.清除GridView对象的所有颜色，并将集合中的coloumns添加到GridView对象。

 gv.Columns.Clear（）; 
  foreach （DataControlField coloumn  in  coloumns）
 {
 gv。 Columns.Add（coloumn）; 
} 

HI试试这样..



考虑你的 Gridview 具有两个绑定字段列，如下所示

将 AutoGenerateColumns 设置为 false

 <   asp：GridView     ID   =  GridView1    AutoGenerateColumns   =  false    runat   =  server >  
 <  列 < span class =code-k eyword>>  
 <   asp：BoundField     HeaderText   =  ____ Static_Col_AA    DataField   =  AutoColum_AA    ItemStyle-Width  < span class =code-keyword> =  50px    /  >  
 <   asp：BoundField     HeaderText   =  ____ Stat ic_Col_BB    DataField   =  AutoColum_BB    ItemStyle-Width   =  50px    /  >  
 <   / Columns  >  
 <   / asp：GridView  >  

假设这个示例数据源：

 DataTable dt =  new  DataTable（）; 
 dt.Columns.Add（  AutoColum_AA， typeof （ int ））; 
 dt.Columns.Add（  AutoColum_BB， typeof （ int ））; 
 dt.Columns.Add（  AutoColum_CC， typeof （ int ））; 
 dt.Columns.Add（  AutoColum_DD， typeof （ int ））; 
 
  for （ int  i =  0 ; i <   6 ; i ++）
 dt.Rows。添加（i，i，i，i）; 
 

将gridview的所有静态列存储到列表中

 List< DataControlField> lstStaticColumns =  new  List< DataControlField>（）; 
  foreach （DataControlField col  in  GridView1.Columns）
 lstStaticColumns.Add（col ）; 

清除GridView列：

 GridView1.Columns.Clear（）; 
 

在代码隐藏中创建动态列为

（这将是自动生成的列它将首先出现在网格视图中）

  foreach （DataColumn col  in  dt.Columns）
 {
 BoundField bfield =  new  BoundField（）; 
 bfield.DataField = col.ColumnName; 
 bfield.HeaderText = col.ColumnName; 
 GridView1.Columns.Add（bfield）; 
} 

将静态列添加到GridView（绑定（静态）列将出现在最后）

  foreach （DataControlField col  in  lstStaticColumns）
 GridView1.Columns.Add（col）; 

将GridView绑定如下.. 。:)

 GridView1.DataSource = dt; 
 GridView1.DataBind（）; 

注意：经过测试的工作正常..

I am using gridView. I have some auto generated columns and some generated by me. Now the column which I have generated is displayed first and then the auto generated columns. I want to display auto generated columns first and then my generated columns.

IMP Note 1 :- I can't use this (for example): -

<asp:BoundField HeaderText="My First Column" DataField="myField1" />

Note 2 : No. of columns and name of columns are dynamic

解决方案

Try This

datagridview.Columns["ColumnName"].DisplayIndex = 1;//Replace 1 with your index where you want the column to be displayed.

change gridview templatecolumn order dynamically.
1.Iterate through all coloumns of the GridView object and Store them in a collection.

List<DataControlField> coloumns = new List<DataControlField>();
foreach (DataControlField coloumn in gv.Columns)
{
    coloumns.Add(coloumn);
}

2.Rearrange the coloumn-objects as you want in the collection.
//Rearrange coloumns' collection..

3.Clear all coloumns of the GridView object and add coloumns from the collection to GridView object.

gv.Columns.Clear();
 foreach (DataControlField coloumn in coloumns)
 {
     gv.Columns.Add(coloumn);
 }

HI Try like this..

Consider your Gridview has two bound field columns as below
set the AutoGenerateColumns as false

<asp:GridView ID="GridView1" AutoGenerateColumns="false" runat="server">
       <Columns>
           <asp:BoundField HeaderText="____Static_Col_AA" DataField="AutoColum_AA" ItemStyle-Width="50px" />
           <asp:BoundField HeaderText="____Static_Col_BB" DataField="AutoColum_BB" ItemStyle-Width="50px" />
       </Columns>
   </asp:GridView>

assume this sample datasource:

DataTable dt = new DataTable();
               dt.Columns.Add("AutoColum_AA", typeof(int));
               dt.Columns.Add("AutoColum_BB", typeof(int));
               dt.Columns.Add("AutoColum_CC", typeof(int));
               dt.Columns.Add("AutoColum_DD", typeof(int));

               for (int i = 0; i < 6; i++)
                   dt.Rows.Add(i, i, i, i);

Store all the static columns of the gridview to a list as

List<DataControlField> lstStaticColumns = new List<DataControlField>();
               foreach (DataControlField col in GridView1.Columns)
                   lstStaticColumns.Add(col);

Clear the GridView Columns:

GridView1.Columns.Clear();

Create the Dynamic Columns in the codebehind as
( this will be auto generated columns which will be appearing first in the gird view )

foreach (DataColumn col in dt.Columns)
                {
                    BoundField bfield = new BoundField();
                    bfield.DataField = col.ColumnName;
                    bfield.HeaderText = col.ColumnName;
                    GridView1.Columns.Add(bfield);
                }

Add the Static Columns to the GridView ( bound (static) columns will be appearing at the end )

foreach (DataControlField col in lstStaticColumns)
                   GridView1.Columns.Add(col);

Bind the GridView as below... :)

GridView1.DataSource = dt;
               GridView1.DataBind();

Note: Tested Working Fine..

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