GridView绑定xml,增、删、改、取消
GridView绑定xml,增、删、改、取消
1、XML数据源的文件名为Tables.xml,结构如下：
< Tables > < SOP > < PitchY > 0.20 </ PitchY > < T > 0.30 </ T > < B > 0.40 </ B > < WM > 0.40 </ WM > < WM1 >1 </ WM1 > < WP > 0.50 </ WP > < WP1 > 0 </ WP1 > < R > 0.06 </ R > < LM > L-1 </ LM > < WCM > 0.22 </ WCM > < WCP > 0.37 </ WCP > </ SOP > < SOP > < PitchY > 3.00 </ PitchY > < T > 0.99 </ T > < B > 0.87 </ B > < WM > 0.33 </ WM > < WM1 > 1 </ WM1 > < WP > 1.00 </ WP > < WP1 > 1 </ WP1 > < R > 0.05 </ R > < LM > L </ LM > < WCM >0.77 </ WCM > < WCP > 0.80 </ WCP > </ SOP > < DCHIP > < BodySize >3000 </ BodySize > < L > 0.50 </ L > < W > 0.60 </ W > < D > 0.40 </ D > < T > 0.20 </ T > < S > 0.05 </ S > < R > 0.05 </ R > < Wm > 0.53 </ Wm > < Lm > 0.45 </ Lm > </ DCHIP > < DCHIP > < BodySize > 1608 </ BodySize > < L > 0.70 </ L > < W > 0.90 </ W > < D > 0.80 </ D > < T > 0.30 </ T > < S > 0.05 </ S > < R > 0.05 </ R > < Wm > 0.85 </ Wm > < Lm > 0.60 </ Lm > </ DCHIP > < DCHIP > < BodySize > 6785 </ BodySize > < L > 1.50 </ L > < W > 5.30 </ W > < D >5.30 </ D > < T >0.99 </ T > < S > 0.15 </ S > < R > 0.05 </ R > < Wm >9 .20 </ Wm > < Lm > 1.30 </ Lm > </ DCHIP > </ Tables >
2、具体代码
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --> string xmlPath = " Calculation/Tables.xml " ; // 恢复GridView正常状态 private void ResetParameter() { gvParameter.EditIndex = - 1 ; LoadParameter(ddlShapeType.SelectedValue); } // 加载XML并显示在GridView里 private void LoadParameter( string shapeType) { DataSet dsRule = new DataSet(); dsRule.ReadXml(xmlPath); DataTable dtRule = dsRule.Tables[shapeType]; gvParameter.DataSource = dtRule; gvParameter.DataBind(); } // 新增事件 protected void lnbAddNew_Click( object sender, EventArgs e) { if (ddlShapeType.SelectedValue.Length == 0 ) { lblMsg.Visible = true ; lblMsg.Text = " Warning: Please select shape type ! " ; return ; } else if (gvParameter.Rows.Count == 0 ) { lblMsg.Visible = true ; lblMsg.Text = " Warning: [ " + ddlShapeType.SelectedValue + " ] table not exists ! " ; return ; } DataSet ds = new DataSet(); ds.ReadXml(xmlPath); DataTable dt = ds.Tables[ddlShapeType.SelectedValue]; DataRow dr = dt.NewRow(); dt.Rows.Add(dr); ds.WriteXml(xmlPath); // 将修改写入Table.xml ResetParameter(); } // 编辑事件 protected void gvParameter_RowEditing( object sender, GridViewEditEventArgs e) { gvParameter.EditIndex = e.NewEditIndex; LoadParameter(ddlShapeType.SelectedValue); GridViewRow row = gvParameter.Rows[e.NewEditIndex]; // 前面2列是Delete、Edit,故从第三列开始 for ( int i = 2 ; i < row.Cells.Count; i ++ ) { TextBox tb = (TextBox)row.Cells[i].Controls[ 0 ]; tb.Width = 50 ; } } // 更新事件 protected void gvParameter_RowUpdating( object sender, GridViewUpdateEventArgs e) { GridViewRow row = gvParameter.Rows[e.RowIndex]; // 获得当前行 int numCell = row.Cells.Count; // 共几列单元格(包含Edit和Delete 2列) int currentRow = row.DataItemIndex; // 对应DataSet对应的行索引 DataSet ds = new DataSet(); ds.ReadXml(xmlPath); DataRow dr; // 找到对应与DataSet行 dr = ds.Tables[ddlShapeType.SelectedValue].Rows[row.DataItemIndex]; string [] str = null ; // 此数组定义表的列名 switch (ddlShapeType.SelectedValue) { case " SOP " : { str = new string []{ " PitchY " , " T " , " B " , " WM " , " WM1 " , " WP " , " WP1 " , " R " , " LM " , " WCM " , " WCP " }; break ; } case " DCHIP " : { str = new string [] { " BodySize " , " L " , " W " , " D " , " T " , " S " , " R " , " Wm " , " Lm " }; break ; } } int j = 0 ; // 从第3列开始,前面有2列是Edit和Delete for ( int i = 2 ; i < numCell; i ++ ) { string cText = ((TextBox)row.Cells[i].Controls[ 0 ]).Text; dr[str[j]] = cText; j ++ ; } ds.WriteXml(xmlPath); // 将修改写入Table.xml ResetParameter(); } // 取消修改 protected void gvParameter_RowCancelingEdit( object sender, GridViewCancelEditEventArgs e) { ResetParameter(); } // 删除事件 protected void gvParameter_RowDeleting( object sender, GridViewDeleteEventArgs e) { GridViewRow row = gvParameter.Rows[e.RowIndex]; int curr = row.RowIndex; DataSet ds = new DataSet(); ds.ReadXml(xmlPath); DataRow dr = ds.Tables[ddlShapeType.SelectedValue].Rows[curr]; dr.Delete(); ds.WriteXml(xmlPath); ResetParameter(); }