将SelectedIndex设置为DataGridViewComboBoxColumn [英] set SelectedIndex to DataGridViewComboBoxColumn

问题描述

大家好

这是我的代码

我确实读取了数据库值，但如何在此处设置selectedindex ???????????????

hi every body

this is my code

i did read database values but how to set selectedindex here???????????????

dataGridView2.DataSource = List;

for (int i = 0; i < dataGridView2.Rows.Count; i++)
                {
                    DataGridViewComboBoxColumn column = (DataGridViewComboBoxColumn)this.dataGridView2.Columns[0];
                    Typess = Type;
                    switch (Typess)
                    {
                        case _blank_:
                            //how to set selectedinedex here......
                            //column .selectedindex=0;
                            break;
                        case Order:
                             //how to set selectedinedex here......
                            //column .selectedindex=1;
                            break;
                        case Sales_Shipment:
                             //how to set selectedinedex here...... 
                            //column .selectedindex=2;
                            break;
                        default:
                            break;
                    }
                }

在此先感谢..............

Thanks in advance..............

推荐答案

不需要迭代DataTable的所有行，为它设置SelectedIndex. ComboBoxColumn.而是按以下示例中给出的示例所示设置DataGridViewComboBoxColumn的DataSource，DisplayMember和ValueMember属性，

It is not required to iterate all rows of the DataTable set the SelectedIndex for the ComboBoxColumn. Instead the DataSource, DisplayMember and ValueMember properties of DataGridViewComboBoxColumn as to be set as shown in the example given here http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridviewcomboboxcolumn.datasource.aspx[^]

The DataGridView displays the DisplayMember field of the DataSource of ComboBoxColumn corresponding to the ValueMember.

For eg. the DataSource of the ComboBox column is set to a DataTable like
Sl.No. Title
1 Mr
2 Mrs
3 Ms

Now, the DataTable for which DataGridView contains a filed Title with following values


.... 1 ...
.... 3 ...
.... 2 ...

When the DataGridComboBoxColumn is setup with ValueMember as SlNo and DisplayMember as Title then it displays like below
.... Mr ...
.... Ms ...
.... Mrs ...

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