winform中dataGridView有一个列是float类型数值问题

yezhendong185 2010-09-03 04:38:52

我现在在datagridview中有一个列是float类型的数值，现在有一些数字比如12.01 15 4.5我要他们统一后面保留俩个数，应该怎么做。就是要显示的结果是12.01 15.00 4.50.

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yezhendong185 2010-09-06

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谢谢楼上各位，问题解决！！！

glest 2010-09-06

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[Quote=引用 8 楼 yezhendong185 的回复:]

引用 7 楼 dfdfdfjddlfd 的回复:
this.dataGridView1.DefaultCellStyle.Format = "N2";

此方法行不通
[/Quote]

this.column1.DefaultCellStyle.Format = "N2";//column1为需要设置格式的列名

uvvvw 2010-09-06

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学习了

yezhendong185 2010-09-06

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[Quote=引用 7 楼 dfdfdfjddlfd 的回复:]
this.dataGridView1.DefaultCellStyle.Format = "N2";
[/Quote]

此方法行不通

DevinHu 2010-09-03

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this.dataGridView1.DefaultCellStyle.Format = "N2";

xiaodru88 2010-09-03

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字段里的DisplayFormat设置为0.00就行了
TBCDField(mDataSet.Fields[I]).DisplayFormat= '0.00 ';

new_BCBER 2010-09-03

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其行为中的Format属性设为 N2 即可

dancingbit 2010-09-03

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怎么个没有办法设置？

MSDN中都有现在的例子的：



// Configures the appearance and behavior of a DataGridView control.

private void InitializeDataGridView()

{

    // Initialize basic DataGridView properties.

    dataGridView1.Dock = DockStyle.Fill;

    dataGridView1.BackgroundColor = Color.LightGray;

    dataGridView1.BorderStyle = BorderStyle.Fixed3D;



    // Set property values appropriate for read-only display and 

    // limited interactivity. 

    dataGridView1.AllowUserToAddRows = false;

    dataGridView1.AllowUserToDeleteRows = false;

    dataGridView1.AllowUserToOrderColumns = true;

    dataGridView1.ReadOnly = true;

    dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;

    dataGridView1.MultiSelect = false;

    dataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;

    dataGridView1.AllowUserToResizeColumns = false;

    dataGridView1.ColumnHeadersHeightSizeMode = 

        DataGridViewColumnHeadersHeightSizeMode.DisableResizing;

    dataGridView1.AllowUserToResizeRows = false;

    dataGridView1.RowHeadersWidthSizeMode = 

        DataGridViewRowHeadersWidthSizeMode.DisableResizing;



    // Set the selection background color for all the cells.

    dataGridView1.DefaultCellStyle.SelectionBackColor = Color.White;

    dataGridView1.DefaultCellStyle.SelectionForeColor = Color.Black;



    // Set RowHeadersDefaultCellStyle.SelectionBackColor so that its default

    // value won't override DataGridView.DefaultCellStyle.SelectionBackColor.

    dataGridView1.RowHeadersDefaultCellStyle.SelectionBackColor = Color.Empty;



    // Set the background color for all rows and for alternating rows. 

    // The value for alternating rows overrides the value for all rows. 

    dataGridView1.RowsDefaultCellStyle.BackColor = Color.LightGray;

    dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.DarkGray;



    // Set the row and column header styles.

    dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;

    dataGridView1.ColumnHeadersDefaultCellStyle.BackColor = Color.Black;

    dataGridView1.RowHeadersDefaultCellStyle.BackColor = Color.Black;



    // Set the Format property on the "Last Prepared" column to cause

    // the DateTime to be formatted as "Month, Year".

    dataGridView1.Columns["Last Prepared"].DefaultCellStyle.Format = "y";



    // Specify a larger font for the "Ratings" column. 

    using (Font font = new Font(

        dataGridView1.DefaultCellStyle.Font.FontFamily, 25, FontStyle.Bold))

    {

        dataGridView1.Columns["Rating"].DefaultCellStyle.Font = font;

    }



    // Attach a handler to the CellFormatting event.

    dataGridView1.CellFormatting += new

        DataGridViewCellFormattingEventHandler(dataGridView1_CellFormatting);

}