如何使用.NET从Access数据库中处理表 [英] How to manipulate a table from an Access Database with .NET

问题描述

我在Access数据库中有一个名为"Streets"的表，并且已经与

I have a table named "Streets" in an access db, and I have opened a connection with

OleDbConnection con = OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;" + @"Data source=" + mdbFileName);

我怎么到餐桌旁?

推荐答案

向您的项目添加ADOX COM引用，然后尝试以下代码:

Add an ADOX COM reference to your project and try out the following code:

using ADOX;

//...
private void Test() {
    string connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=<path to your .mdb>";
    CatalogClass cat = new CatalogClass();
    cat.let_ActiveConnection(connString);

    RenameField(cat, "YourTableName", "OriginalFieldName", "NewFieldName");
    AddField(cat, "YourTableName", "YourNewFieldName", DataTypeEnum.adVarWChar, 50, "");
}

// Rename a field.
private void RenameField(CatalogClass cat, string tableName, string originalFieldName, string newFieldName) {
    cat.Tables[tableName].Columns[originalFieldName].Name = newFieldName;
}

// Add a field to a specified table.
private void AddField(ADOX.CatalogClass cat, string tableName, string newFieldName, DataTypeEnum varType, int size, string defaultValue) {
    ColumnClass col = new ColumnClass();
    col.Name = newFieldName;
    col.Type = varType;
    col.DefinedSize = size;
    col.Attributes = ColumnAttributesEnum.adColNullable;
    cat.Tables[tableName].Columns.Append((object)col, DataTypeEnum.adInteger, 0);

    if (!string.IsNullOrEmpty(defaultValue)) {
        col.Properties["Default"].Value = defaultValue;
    }

}

详细信息可以在以下博客文章中找到:

Details can be found in the following blog posts:

重命名字段使用ADOX(C#.NET)以编程方式访问MS
使用ADOX(C#.Net)以编程方式在MS Access中添加新字段

使用标准ADO.net将数据添加到新字段中.

Add data to your new field by using standard ADO.net.

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