C#中对DatagridView部分常用操作

来源：这里教程网时间：2026-02-21 13:06:46 作者：

this.currentposition = this.datagridview1.bindingcontext

[this.datagridview1.datasource, this.datagridview1.datamember].position;

bookcontent = this.database.dataset.tables[0].rows

[this.currentposition][21].tostring().trim();

messagebox.show(bookcontent);

1、自定义列

//定义列宽

this.datagridview1.columns[0].width = 80;

this.datagridview1.columns[1].width = 80;

this.datagridview1.columns[2].width = 180;

this.datagridview1.columns[3].width = 120;

this.datagridview1.columns[4].width = 120;

customize cells and columns in the windows forms

datagridview control by extending theirbehavior and

appearancehost controls in windows forms datagridview cells

继承 datagridviewtextboxcell 类生成新的cell类，然后再继承 datagridviewcolumn 生成新的column类，并指定

celltemplate为新的cell类。新生成的column便可以增加到datagridview中去。

2、自动适应列宽

programmatically resize cells to fit content in

the windows forms datagridview controlsamples：

datagridview.autosizecolumns(datagridviewautosizecolumncriteria.headeranddisplayedrows);

datagridview.autosizecolumn(datagridviewautosizecolumncriteria.headeronly,2, false);

datagridview.autosizerow(datagridviewautosizerowcriteria.columns,2, false);

datagridview.autosizerows

(datagridviewautosizerowcriteria.headerandcolumns,0, datagridview1.rows.count, false);

3、可以绑定并显示对象

bind objects to windows forms datagridview controls

4、可以改变表格线条风格

change the border and gridline styles in

the windows forms datagridview controlsamples:

this.datagridview1.gridcolor = color.blueviolet;

this.datagridview1.borderstyle = borderstyle.fixed3d;

this.datagridview1.cellborderstyle = datagridviewcellborderstyle.none;

this.datagridview1.rowheadersborderstyle = datagridviewheaderborderstyle.single;

this.datagridview1.columnheadersborderstyle = datagridviewheaderborderstyle.single;

5、动态改变列是否显示，和动态改变列的显示顺序

change the order of the columns in the windows forms datagridview controlsamples：

customersdatagridview.columns["customerid"].visible = false;

customersdatagridview.columns["contactname"].displayindex = 0;

customersdatagridview.columns["contacttitle"].displayindex = 1;

customersdatagridview.columns["city"].displayindex = 2;

customersdatagridview.columns["country"].displayindex = 3;

customersdatagridview.columns["companyname"].displayindex = 4;

6、可以在列中显示图像

display images in cells of the windows forms datagridview controlsamples：

icon treeicon = new icon(this.gettype(), "tree.ico");

datagridviewimagecolumn iconcolumn = new datagridviewimagecolumn ();

iconcolumn.image = treeicon.tobitmap();iconcolumn.name =

"tree";iconcolumn.headertext = "nice tree";

datagridview1.columns.insert(2, iconcolumn);

7、格式化显示内容:

format data in the windows forms datagridview controlsamples:

this.datagridview1.columns["unitprice"].defaultcellstyle.format = "c";

this.datagridview1.columns["shipdate"].defaultcellstyle.format = "d";

this.datagridview1.defaultcellstyle.nullvalue = "no entry";

this.datagridview1.defaultcellstyle.wrapmode = datagridviewwrapmode.wrap;

this.datagridview1.columns["customername"].

defaultcellstyle.alignment =datagridviewcontentalignment.middleright;

8、在拖动列的滚动条时可以将指定的列冻结

freeze columns in the windows forms datagridview controlsamples：

将指定列及以前的列固定不动this.datagridview1.columns["addtocartbutton"].

frozen = true;

9、获取选择的单元格,行,列

get the selected cells, rows,

and columns in the windows forms datagridview controlsamples:

10、显示录入时出现的错误信息

handle errors that occur during data entry in the windows

forms datagridview controlsamples：

private void datagridview1_dataerror

(object sender,datagridviewdataerroreventargs e){

// if the data source raises an exception when a cell value is

// commited, display an error message.

if

(e.exception != null &&e.context == datagridviewdataerrorcontext.commit){

messagebox.show("customerid value must be unique.");

}

}

11、大数据量显示采用virtual mode

implement virtual mode in the windows forms datagridview control

12、设置指定的列只读

make columns in the windows forms datagridview control read-onlysamples：

datagridview1.columns["companyname"].readonly = true;

13、移去自动生成的列

remove autogenerated columns from a windows forms datagridview controlsample:

datagridview1.autogeneratecolumns

= true;datagridview1.datasource

= customerdataset;datagridview1.columns.remove ("fax");

或：datagridview1.columns["customerid"].visible = false;

14、自定义

选择模式

set the selection mode of the windows forms datagridview controlsample：

this.datagridview1.selectionmode

= datagridviewselectionmode.fullrowselect;

this.datagridview1.multiselect = false;

15、自定义设定光标进入单元格是否编辑模式（编辑模式）

specify the edit mode for the windows forms datagridview

controlthis.datagridview1.editmode

= datagridvieweditmode.editonenter;

16、新行指定默认值

specify default values for new rows in the windows

forms datagridview controlsample：

private void datagridview1_defaultvaluesneeded(object sender,

system.windows.forms.datagridviewroweventargs e){

e.row.cells["region"].value = "wa";

e.row.cells["city"].value = "redmond";

e.row.cells["postalcode"].value = "98052-6399";

e.row.cells["region"].value = "na";

e.row.cells["country"].value = "usa";

e.row.cells["customerid"].value = newcustomerid();

}

17、数据验证

validate data in the windows forms datagridview controlsamples：

private void datagridview1_cellvalidating

(object sender,datagridviewcellvalidatingeventargs e){

// validate the companyname entry by disallowing empty strings.

if (datagridview1.columns[e.columnindex].name == "companyname"){

if (e.formattedvalue.tostring() == string.empty){

datagridview1.rows[e.rowindex].errortext

="company name must not be empty";

e.cancel = true;

}

}

}

18、数据提交到dataset中

dataset ds = new dataset("mydataset");

ds.tables[biaom.trim()].rows.clear();

try{for (int i = 0; i
datatable dt = ds.tables[biaom.trim()];

datarow myrow = ds.tables[biaom.trim()].newrow();

for (int j = 0; j
myrow[j] = convert.tostring(datagridview1.rows[i].cells[j].value);

}

ds.tables[biaom.trim()].rows.add(myrow);

}

}

catch (exception){

messagebox.show("输入类型错误！");

return;

}