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#1
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#2
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Hi, I tried to solve this for a while, but there is always somewhere a problem. Here my story: The table contains two fields (field1, field2). I use a gridview for editing the table: field1 can be updated manually, but field2 must be updated with the selectedvalue of a dropdownlist. So I checked the SelectedIndex and if it's >0 (first element is only a message), i created a controlparameter which is necessary for the link with the selectedvalue. This is the code here below: it works only for field1 AND if the DropDownList1.SelectedIndex is not >0 (means first item or no click). No error, but I can't update field2. I think that the problem is: SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" (in code-behind), but I have no idea how to correct this. If you know it, please tell me Thanks Cas aspx code: --------- asp:SqlDataSource ID="SqlDataSource1 ... SelectCommand="SELECT * FROM [mytable]" UpdateCommand="UPDATE [mytable] SET [field1] = ?" UpdateParameters asp:Parameter Name="field1" Type="String" / /UpdateParameters /asp:SqlDataSource asp:GridView ID="GridView1" ... Columns asp:CommandField ShowEditButton="True"/ asp:BoundField DataField="field1" / asp:BoundField DataField="field2" / /Columns /asp:GridView asp ropDownList ID="DropDownList1" .../asp ropDownListcode-behind: ----------- Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating If DropDownList1.SelectedIndex > 0 Then Dim a As New ControlParameter a.ControlID = "Dropdownlist1" a.Type = TypeCode.String a.PropertyName = "SelectedValue" SqlDataSource1.UpdateParameters.Add(a) SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" End If End Sub |
#3
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I found it .... the line sqldatasource1.update() was missing "Cas" <s@s> schreef in bericht news:esKv2fRxGHA.1224 (AT) TK2MSFTNGP03 (DOT) phx.gbl... Hi, I tried to solve this for a while, but there is always somewhere a problem. Here my story: The table contains two fields (field1, field2). I use a gridview for editing the table: field1 can be updated manually, but field2 must be updated with the selectedvalue of a dropdownlist. So I checked the SelectedIndex and if it's >0 (first element is only a message), i created a controlparameter which is necessary for the link with the selectedvalue. This is the code here below: it works only for field1 AND if the DropDownList1.SelectedIndex is not >0 (means first item or no click). No error, but I can't update field2. I think that the problem is: SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" (in code-behind), but I have no idea how to correct this. If you know it, please tell me Thanks Cas aspx code: --------- asp:SqlDataSource ID="SqlDataSource1 ... SelectCommand="SELECT * FROM [mytable]" UpdateCommand="UPDATE [mytable] SET [field1] = ?" UpdateParameters asp:Parameter Name="field1" Type="String" / /UpdateParameters /asp:SqlDataSource asp:GridView ID="GridView1" ... Columns asp:CommandField ShowEditButton="True"/ asp:BoundField DataField="field1" / asp:BoundField DataField="field2" / /Columns /asp:GridView asp ropDownList ID="DropDownList1" .../asp ropDownListcode-behind: ----------- Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating If DropDownList1.SelectedIndex > 0 Then Dim a As New ControlParameter a.ControlID = "Dropdownlist1" a.Type = TypeCode.String a.PropertyName = "SelectedValue" SqlDataSource1.UpdateParameters.Add(a) SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" End If End Sub |
#4
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Hi, I tried to solve this for a while, but there is always somewhere a problem. Here my story: The table contains two fields (field1, field2). I use a gridview for editing the table: field1 can be updated manually, but field2 must be updated with the selectedvalue of a dropdownlist. So I checked the SelectedIndex and if it's >0 (first element is only a message), i created a controlparameter which is necessary for the link with the selectedvalue. This is the code here below: it works only for field1 AND if the DropDownList1.SelectedIndex is not >0 (means first item or no click). No error, but I can't update field2. I think that the problem is: SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" (in code-behind), but I have no idea how to correct this. If you know it, please tell me Thanks Cas aspx code: --------- asp:SqlDataSource ID="SqlDataSource1 ... SelectCommand="SELECT * FROM [mytable]" UpdateCommand="UPDATE [mytable] SET [field1] = ?" UpdateParameters asp:Parameter Name="field1" Type="String" / /UpdateParameters /asp:SqlDataSource asp:GridView ID="GridView1" ... Columns asp:CommandField ShowEditButton="True"/ asp:BoundField DataField="field1" / asp:BoundField DataField="field2" / /Columns /asp:GridView asp ropDownList ID="DropDownList1" .../asp ropDownListcode-behind: ----------- Protected Sub GridView1_RowUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles GridView1.RowUpdating If DropDownList1.SelectedIndex > 0 Then Dim a As New ControlParameter a.ControlID = "Dropdownlist1" a.Type = TypeCode.String a.PropertyName = "SelectedValue" SqlDataSource1.UpdateParameters.Add(a) SqlDataSource1.UpdateCommand="UPDATE [mytable] SET [field1] = ?,[field2] = ?" End If End Sub |
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